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Naming of the organisms - class-X

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Select the correctly written botanical/zoological name.

  1. Homo Sapiens

  2. Panthera tigris

  3. Pisum sativum

  4. Mangifera Indica


Correct Option: B,C
Explanation:

The scientific naming of an organism is termed as Binomial nomenclature. It was first given by Carl Linnaeus. In this system, the first section of the name indicates genus and the second one indicating the species name. Genus name should always start with capital letter and the species name should start with the small letter. In the biological name both the words, when handwritten are separately underlined or printed in italics.

So, the correct answer is ‘Panthera tigris and Pisum sativum'.

Plants were given Latin names because it is a.

  1. Simple language

  2. Common language

  3. Dead language

  4. None of these


Correct Option: C
Explanation:

The scientific names ensure that each organism has only one name. Description of any organism should enable the people (in any part of the world) to arrive at the same time. They also ensure that such a name has not been used for any other known organism. Dead language is a language that is no longer spoken by anyone as their main language.

So the correct option is "Dead language".

ICBN is?

  1. International Code of Biological Naming

  2. International Code of Botanical Nomenclature

  3. International Class of Biological Nomenclature

  4. International Classification of Biological Nomenclature


Correct Option: B
Explanation:

ICBN stands for International Code for Botanical Nomenclature (ICBN).

So the correct option is " International Code for Botanical Nomenclature".

The main objective of plant taxonomy is?

  1. To study the world's flora

  2. To provide a method for identification and nomenclature

  3. To provide Latin 'scientific' names for every group of plants in the world

  4. All of these


Correct Option: B
Explanation:

Classification is the process by which anything is grouped into convenient categories based on some easily observable characters. Hence, based on characteristics, all living organisms can be classified into different taxa. This process of classification is taxonomy. External and internal structure, along with the structure of cell, development process and ecological information of organisms are essential and form the basis of modern taxonomic studies. Hence, characterization, identification, classification, and nomenclature are the process that is basis to taxonomy.

So the correct option is "To provide a method for identification and nomenclature".

In which of the following, scientific name, family and common name are correctly mentioned?

  1. Scientific name-Batrachospermum, Family-Rhodophyceae, Common name-Frog's spawn algae

  2. Scientific name-Spirogyra, Family-Chlorophyceae, Common name-Water net

  3. Scientific name-Lycopodium, Family-Lycopodiaceae, Common name-Sanjeevani

  4. Scientific name-Selaginella, Family-Lycopodiaceae, Common name-Little club moss


Correct Option: A
Explanation:

Batrachospermum is the botanical name for frogs spawn algae, while the other options have incorrect scientific names.

So, the correct option is 'Scientific name-Batrachospermum, Family-Rhodophyceae, Common name-Frog's spawn algae'.

Which of the following statements regarding universal rules of nomenclature is wrong?

  1. The first word is biological name represents the genus.

  2. The first word denoting the genus starts with a capital letter.

  3. Both the words in a biological name, when handwritten, are separately underline.

  4. Biological names are generally in Greek and written in italics.


Correct Option: D
Explanation:

Binomial nomenclature is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name; more informally it is also called a Latin name. The first part of the name – the generic name – identifies the genus to which the species belongs, while the second part – the specific name or specific epithet – identifies the species within the genus.


So the correct option is 'Biological names are generally in Greek and written in italics.'

A homonym is 

  1. Two or more names for the same taxon.

  2. Species name repeats the generic name.

  3. Identical name of two different taxa.

  4. Name given to a taxon in local language.


Correct Option: C
Explanation:

A homonym is the identical name of two different taxa. 

The rule in the International Code of Zoological Nomenclature is that the first such name to be published is the senior homonym and is to be used (it is "valid") and any others are junior homonyms and must be replaced with new names.
For example, Cuvier proposed the genus Echidna in for the spiny anteater.
However, Forster had already published the name Echidna in for a genus of moray eels. Forster's use thus has priority, with Cuvier's being a junior homonym.
So, the correct option is 'Identical name of two different taxas'.

Common names are 

  1. Non-specific

  2. Scientific

  3. Morphological

  4. Universal


Correct Option: A
Explanation:
  • The local name of a particular plant or animal is non-specific and not sufficient for identification because they can have numerous local names according to regional languages.
  • For example, The lion is called lion in English and French, sher in Hindi, Leon in Spanish etc. 
  • So, there arises a need for a universal name that can be recognized by all the countries and regions. This lead way to the issuing of binomial names to plants and animals.
Hence, the correct option is 'Non-specific'.

Generic name should be written as 

  1. First letter capital and double word

  2. First letter small and double word

  3. First letter capital and single word

  4. First letter small and single word


Correct Option: C
Explanation:
  • According to the conventions followed by binomial nomenclature, the scientific name comprises of Genus and Specific epithet.
  • The first letter genus is capitalized while species name is written in small alphabets. Example: Mangifera indica.
  • So, the correct option is 'First letter capital and single word'.

Kalpavriksha is

  1. Banyan

  2. Coconut

  3. Fig

  4. Date


Correct Option: B
Explanation:
  • Coconut is called kalpavriksha, much coveted in Hindu religion and is an integral part of every religious ritual.
  • Hindus believe that coconut is the purest form of offering that one can render(give) to God.
  • Hence Kalpavriksha is coconut.
  • So, the correct answer is 'Coconut'

Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?

  1. When written by hand, the names are to be underlined.

  2. Biological names can be written in any language.

  3. The first word in a biological name represents the genus name and the second is a specific epithet.

  4. The names are written in Latin and are italicised.


Correct Option: B
Explanation:

The system of bionomial nomenclature was developed by Linnaeus. There were certain rules which were set up for writing the scientific names. They are as follows:

1. Each organism is given only one name consisting of two words- generic and specific.
2. The scientific name is printed in italics. It is underlined in handwritten description. 
The generic name is written first. It is followed by specific name and the name of discoverer in full or abbreviation. 
4. The name of the author is written in Roman script.
5. The original names were taken from Latin and Greek languages. New names are derived from latin language as Latin is a dead language and therefore it will not change in form or spelling with the passage of time. 
Thus, the correct answer is option B. 

Vernacular names may be misleading. Which of the following is an example of that? 

  1. Star fish is not a fish at all

  2. Silver fishes are typical fishes

  3. Spiderlily is not a plant

  4. All of the above


Correct Option: D
Explanation:

  • Vernacular names or common names are based on the normal language of everyday life. These can be misleading as different languages have different names of organisms. Also, they are named according to the common knowledge of people and for their ease making not systematically or scientifically. 
  • Starfish is actually an echinoderm and not a fish.
  • Silver fishes are rather members of Arthropoda and spider lily is a plant.
So, the correct option is 'All of the above'.

Both words in a biological name of an organism, when printed in italic to indicates

  1. Their latin origin

  2. Universal name

  3. They are living

  4. They are endangered


Correct Option: A
Explanation:
Following are rules of nomenclature that are followed universally:-
  • Biological names are generally in Latin and written in italics.
They are Latinised or derived from Latin irrespective of their
origin.
  • Both the words in a biological name, when handwritten, are
separately underlined, or printed in italics to indicate their Latin
origin.
So, the correct option is 'Their latin origin'.

Read the statement given below and identify the incorrect statement.

  1. Scientific names favour multiple naming for the same kind of an organism.

  2. Scientific names are used all over the world.

  3. Scientific names are often descriptive and tell us some important character of an organism

  4. Scientific names indicate relationship between species


Correct Option: A
Explanation:
The purpose of nomenclature is to ensure that a single scientific name is used for the same kind of organism all over the world. This prevents confusion while identifying organisms anywhere across the globe.
So, the correct option with incorrect statement is, 'Scientific names favour multiple naming for the same kind of organism'.

Which of the following is not a rule for binomial nomenclature?

  1. The name of categories higher than the name of genus are not printed in italics

  2. Binomial epithet consists of two Latin and one Roman word

  3. Generic and common names can never be the same

  4. The name of the discover is given after scientific name either in full or in abbreviated form


Correct Option: B
Explanation:

Providing two words in the scientific name is called Binomial nomenclature.
In the binomial nomenclature, first word generic name and second word is species name.
So, the correct option is 'Binomial epithet consists of two Latin and one Roman word'.

According to ICBN rules, families and subfamilies names are?

  1. Printed in italics

  2. Never written in bold letters

  3. Based on the name of type genus

  4. Must having suffix "ceae" and "ideae" respectively


Correct Option: D
Explanation:
According to ICBN rules the families and subfamilies should have suffix 'ceae' and 'ideae' 
For example: Family- Fabaceae, sub family -papilionoideae (Rudd)
So, the correct answer is 'Must having suffix "ceae" and "ideae" respectively

Scientific name of organism with similar species and subspecies names denote.

  1. Synonyms

  2. Tautonyms

  3. Autonyms

  4. Homonyms


Correct Option: B
Explanation:

A tautonym is a logical name of an animal variety in which the two sections of the name have a similar spelling, for instance, rattus. The initial segment of the name is the name of the class and the second part is alluded to as the explicit sobriquet in the International Code of Nomenclature for green growth, organisms, and plants and the explicit name in the International Code of Zoological Nomenclature.

So, the correct option is 'Tautonyms'.

A new nomenclatural type submitted when the original material is missing is known as?

  1. Holotype

  2. Isotype

  3. Paratype

  4. Neotype


Correct Option: A

The publication of Linnaeus "Species plantarum" is the starting point for nomenclature of

  1. Moss

  2. Spermatophyta

  3. All organisms

  4. Fungi


Correct Option: B
Explanation:

  • "Species Plantarum", a book written by Carolus Linnaeus (Swedish naturalist), contains nearly 5900 species of plants and it is the starting point for the nomenclature of flowering plants (spermatophytes) and ferns i.e, plants. 
  • Species Plantarum was the first botanical work to consistently apply the binomial nomenclature system for the large group of plants.
So the correct option is spermatophyta.

What does Paris code and Vienna code refer to?

  1. Nomenclature of plants

  2. Nomenclature of animals

  3. Both of the above

  4. Anticode


Correct Option: A
Explanation:

The binomial system of nomenclature has been an important factor in the development of taxonomy. Before the middle of 18th century the names of plants were polynomials consisting of several words. The confusion arising due to this emphasised the need of a code of nomenclature by which the naming of plants might be regulated. Many codes have been proposed, buy only two have received the support of international conferences, the Paris Code of 1867 and the Vienna Code of 1905. These two codes have been a great help in stabilising nomenclature.

ICBN was adopted in 

  1. 1951

  2. 1978

  3. 1971

  4. 1985


Correct Option: B
Explanation:

The current system of International code of botanical nomenclature (ICBN) was adapted to assign the scientific name to plants. It was adapted in 1978 after the twelfth International Botanical Congress held in 1975 to follow the rules for naming the plants. The fifth International Botanical Congress was also held in 1930, at Cambridge (England). So, the correct option is C.

Plants are given Latin names because it is a 

  1. Simple language

  2. Common language

  3. Dead language

  4. None of the above


Correct Option: C
Explanation:

In the mid eighteenth century, the Swedish botanist Carl Linnaeus devised a system in which every living species was given a two part Latin name. Latin, was chosen because it was a dead language, fixed and not changing over time. Thus, we can rely on a Latin name to mean exactly the same thing that it did 300 years ago. The first word in a scientific name, is that of the genus. The second word of a scientific name identifies an individual species.

In a scientific name, the name of the author is printed in

  1. Capital letters

  2. Bold(antics)

  3. Italics

  4. Roman


Correct Option: D
Explanation:

In the scientific name genus and species name written in italic and name of auther is printed in Roman.

Example, Mangifera indica linn. here Mangifera is genus, Indica is species and Linneous is auther name.

Naja naja is the scientific name of Indian Cobra in a:

  1. Tautonym.

  2. Autonym.

  3. Synonym.

  4. Both (B) and (C).


Correct Option: A

Which one of the following is wrong statement?

  1. Growth and reproduction are mutually exclusive in higher plants and animals.

  2. Metabolism and consciousness are defining characteristics of living organisms unlike growth and reproduction.

  3. The standard size of a herbarium sheet is $29 \, \times \, 41cm$.

  4. Binomial system of nomenclature for plant is effective from 1735.


Correct Option: D
Explanation:

Option $D$ is wrong statement.

Binomial system of  nomenclature for plant is effective from $1758$.
Binomial system of nomenclature is a universal name given to any organism. This consists of two Latin words which is written in italics or underlined to denote a species that is to be denoted. This system of naming was introduced by Carl Linnaeus.

Consider the following statements regarding scientific name: (i) The idea of binomial nomenclature was first introduced by Gaspard Bauhin. (ii) Scientific names are always in Greek. (iii) The first name in scientific name is generic name. (iv) Generic and specific name starts with small letters.
Segregate the above statements as true (T) or false (F) by selecting the correct option:

  1. FFTF.

  2. TTTT.

  3. FFFT.

  4. FTFT.


Correct Option: A

Binomial nomenclature is  _____________-

  1. Two words in name of species

  2. Two names local and specific

  3. Feeding over the same food

  4. Reproductively isolated


Correct Option: A
Explanation:

Binomial nomenclature is a two-term naming system that uses two different terms to name the species, plants, animals and living organisms. Binomial nomenclature is also known as Binary nomenclature. The two terms consists of a generic epithet which is genus (category) of that species, and specific epithet which indicates the species itself. This two-terms naming system can also use some other different languages to create such scientific names. These scientific names are unique and help in identifying organisms analyser in the world.

Which of the following scientific name represents both trinomial nomenclature and autonym?

  1. Acacia nilotica indica

  2. Brassica oleracea botrytis

  3. Corvus splendus splendus

  4. Pisum sativum


Correct Option: C

What is correct ______________

  1. APIS INDICA

  2. trypansoma gambiense

  3. Ficus Bengalensis

  4. Mangifera indica


Correct Option: D
Explanation:

Rule of Binomial Nomenclatures-

$\rightarrow $ Generally Latin names written in Italics.
$\rightarrow $ First word is the genus name and the second word is specific epithet.
$\rightarrow $ The two words are written separately and underlined.
$\rightarrow $ The first latter of genus name is capital
$\rightarrow $ The first letter of specific epithet is small.
APIS INDICA $\rightarrow $ Incorrect as all letters are capital 
trypanosoma gambiense $\rightarrow $ Genus name should start with capital letter.
Ficus Gambiense $\rightarrow $ specific epithet should begin with small letter.
Mangifera indica $\rightarrow $ Follows all rules of Binomial Nomenclature.
$\therefore$ Correct option D

In nomenclature ___________

  1. Both genus and species are printed italics

  2. Genus and species are always of the same name

  3. Both in genus and species the first letter is capital

  4. Genus is written after the species


Correct Option: A
Explanation:
The various conventions followed while writing Binomial nomenclature are : 
1. The first letter of the genus name must be capital and the first letter of the species name must be a small letter.
2. Scientific names must be underlined separately when written by hand.
3. In printed matter, these names are printed in Italic and underlined when handwritten.
So, the correct option is 'Both genus and species are printed in italics'.

All the cats in the world belong to ............... same species.

  1. Panthera leo

  2. Panthera tigris

  3. Panthera pardus

  4. Felis domesticus


Correct Option: D
Explanation:
  • Felis domesticus is any domesticated member of the genus Felis. Cat, name applied broadly to the carnivorous mammals constitutes the family Felidae, and specifically to the domestic cat, Felis catus. 

Which of the following is a correct name?

  1. Solanum luberosum

  2. Solanum Tuberosum

  3. Solanum luberosum Linn

  4. None of the above


Correct Option: D
Explanation:

According to binomial nomenclature, as first implemented by C. Linnaeus, each species is assigned two names, the first generic names and second species epithet. Since, generic name is mostly a proper noun, it is written with first letter capitalized while the species epithet is objective and is written in small letters only. It is customary to mention the name of the person who described the species with year after species epithet. Since, the scientific names are formulated in Latin language, they are always written in italics and are underlined when handwritten. Option A is incorrect as “luberosum” is misspelled and the name is not italicized. Option B is incorrect as species epithet “Tuberosum” is written with first letter capitalized and the name is not written in italics. Option C is incorrect as species epithet “luberosum” is misspelled and the name is not written in italics. 

Therefore, the correct answer is option D.

lCBN stands for

  1. Indian Code of Botanical Nomenclature

  2. Indian Congress of Biological Names

  3. International Code of Botanical Nomenclature

  4. International Congress of Biological Names


Correct Option: C
Explanation:

ICBN stands for International code of Botanical Nomenclature.
The Code is an internationally-recognized authority,intended to encourage stability within botanical nomenclature. It provides a stable method of naming taxonomic groups, avoiding and rejecting the use of names which may cause error or ambiguity or throw science into confusion.
Some features of ICBN/ICZN:
- Purpose is to ensure a unique, stable scientific name for every taxon.
- Provides rules for publication, validation, documentation and typification of names.
- Allow assignment and changes in names without interfering with scientific freedom.
- Commissions provide an administrative system to oversee and interpret rules, but not based on case law.
Previous cases that are not involved in a case currently under consideration have no bearing on a case under consideration.  
Therefore, the correct answer is option C.

The scientific name of tamarind is Tamarindus indica (L) and the scientific name of mango is Mangifera indica (L). Which of the following is correct concerning the way it is written?

  1. The letter L means that the Swedish botanist Linnaeus gave this scientific name.

  2. The name is not proper as the first letter of Indica is ought to be capitalised.

  3. The letter L has nothing to do with assigning of this name to the tree.

  4. The letter L means this particular name is from Latin language.


Correct Option: A
Explanation:
  • Binomial nomenclature is the system of naming organisms by giving a name which consists of two parts where the first part denotes Genus of that particular organism and its first letter is capitalized, the second part denotes Species of that particular organism and it is written in the small form.
  • The generic name is followed by a specific epithet and then the name of the discoverer in full or an abbreviation. The name of the author is kept in Roman script. The names are derived either from the Latin language or are Latinized because of the  Latin language is dead and therefore, it will not change in form or spellings with the passage of time.
  • From the example, Tamarindus and Mangifera are the generic names of Tamarind and Mango respectively whereas indicia denotes the specific name of both Tamarind and Mango respectively.
  • The (L) followed by a specific name in both Tamarind and Mango describes the scientist who initially gave them the scientific name i.e, (L) refers to the Swedish botanist Linnaeus.
  • So the correct option is 'The letter L means that the Swedish botanist who gave the scientific name'.

Throughout the world, official species names are in

  1. Latin

  2. Greek

  3. English

  4. Vernacular names


Correct Option: A
Explanation:

  • Most plants and animals have local, popular names, but a system needed to be devised so that they will be recognized everywhere. When Swedish scientist Carl Linnaeus started to devise a system of classifying organisms, he gave different phyla and species Latin names, because Latin was such a universal scholarly language in Europe.
  • Using Latin names helps to avert confusion caused by the often contradictory and multiple common names an individual may have. European scholars throughout the continent spoke Latin as a common language between various European nations. Key scientific figures such as Newton and Mendeleev published their papers and findings in Latin.
  • Latin is used throughout the world as it is a dead language and is universally identified and it will not change in the form or spelling with the passage of time.
  • Most of the scientist, used Latin to publish their papers. So it is only logical for Linnaeus to come out with his classification system for living things (binomial nomenclature) in Latin or else he would not have probably gained much recognition from the academia at that time.
So the correct option is Latin.

What is the scientific name of human being?

  1. Homo sapiens

  2. Rana tigrina

  3. Pavo cristatus

  4. Brassica rapa


Correct Option: A
Explanation:

Homo sapiens is the scientific name of human beings. Rana tigrina is a tiger. Brassica rapa is a turnip and Pavo cristatus is the Indian peacock.

So, the correct answer is option A. 

Generic name 

  1. Always starts with a capital letter.

  2. Always starts with a small letter.

  3. Starts with capital letter for plants and small letter for animals.

  4. Starts with capital letter for animals and small letter for plants.


Correct Option: A
Explanation:

The scientific name of a genus may be called as the generic name or generic epithet. It is always capitalized in both, plants and animals. It plays a pivotal role in binomial nomenclature, the system of naming organisms. 

In printing scientific names, it is conventional for only the .......... to be underlined or italicized.

  1. Binomial

  2. Genus

  3. Species

  4. Division

  5. Kingdom


Correct Option: A
Explanation:

The binomial system of nomenclature was first introduced in 1753 by Carl von Linne, who is known by his latinised name Linnaeus. According to the binomial system, the name of the organism consists of two latin words. The first word which begins with a capital letter refers to the genus. The second word, which begins with lower case letter, refers to species. Both are written in italics or underlined. Hence option A is the correct answer. 

In the early 1700's, the classification system used was

  1. Polynomial

  2. Pentanomial

  3. Binomial

  4. Tetranomial

  5. Trinomial


Correct Option: A
Explanation:

  • The term Nomenclature means the scientific naming of organisms according to an established system. In earlier days common vernacular names were used which generally changes with change of language. Later in the haunt of one common internationally accepted name for a species, scientific names (Technical names) have been introduced in the form of Polynomial, binomial and trinomial systems of nomenclature.
  • In the early 17th century, taxonomists started using a string of descriptive Latin words to designate a species. For example, in the herbal of Clusius (1583) a species of willow is named as Salix pumila angustifolia altera.
  • Polynomial nomenclature was discarded for the two main reasons that it was lengthy and difficult to remember, it often varies from place to place, scholar to scholar based on the characters chosen by them.
So the correct option is Polynomial system.

Botanical name of Sanjeevani is

  1. Selaginella chrysocolla

  2. Selaginella bryopteris

  3. Selaginella chrysorhizos

  4. None of the above


Correct Option: B
Explanation:

Selaginella bryopteris (L.), popularly known as Sanjeevani, is a plant with medicinal properties. Sanjeevani grows on the hills of tropical areas, particularly the Arawali mountain terrains from east to west in India. Traditionally plants have been used to: (i) relief from heat stroke and the burning sensation during urination; (ii) restorating menstrual irregularities to normal and applied topically to pregnant women, aids easy delivery; and (iii) for treating jaundice. So, the correct answer is 'Selaginella bryopteris'.

The name of genus begins with a ........... and the name of species begins with ........ letter.

  1. Capital letter, small letter

  2. Small letter, capital letter

  3. Capital letter, italics letter

  4. Small letter, italics letter


Correct Option: A
Explanation:

While writing the scientific names, certain conventions need to be followed such as the name of genus begins with a capital letter and name of species begins with small letter.

In zoological name of an organism the first word will be

  1. Generic name

  2. Specific name

  3. Name of the order

  4. Family name


Correct Option: A
Explanation:

In the Binomial system of nomenclature zoological name of an organism consist of two parts. The first part starts with a capital letter and represents genus, the second name that does not start with the capital letter is species name. Both the names are underlined separately.

So, the correct answer is option A.

In plants, Latin names are suggested because

  1. Latin name is simple

  2. Universal identification is required 

  3. It is easy to write

  4. None of these


Correct Option: B
Explanation:

  • Plants have Latin names due to Binomial Nomenclature System of naming plants developed by famed Swedish botanist, Linnaeus.
  • Using Latin names helps to avert confusion caused by the often contradictory and multiple common names an individual may have.
  • He picked the Latin language because it's a dead language and is universally identified
So the correct option is universal identification is required. 

Biological names are regarded legitimate when

  1. They are not illegitimate

  2. They are very popular

  3. They have their holotypes

  4. All of the above


Correct Option: D
Explanation:

Biological names are regarded legitimate when, they are not illegitimate, very popular and have their holotypes.
So, answer is - 'All of the above'.

When generic name is repeated in specific name of a species, it is called

  1. Synonyms

  2. Antonyms

  3. Tautonyms

  4. None of the above


Correct Option: C
Explanation:

A tautonym is a scientific name of a species in which both parts of the name (the genera and species) have the same spelling, for example - Bison bison Linnaeus, 1758 for American Bison.

Which is correct about energy changes in living cells?

  1. First energy transfer, then energy transformation

  2. First energy transformation, then energy transfer

  3. Both occur discontinuously

  4. Both occur continuously


Correct Option: D
Explanation:

The chemical energy from the organic molecules is transformed into a simpler form by cells through cellular respiration (Energy Transformation) and then transferred to other tissues of the body for their metabolic activities (Energy transfer). Both these processes happen continuously in our body.

The correct answer is D.

Which of the following gives benefit to using the common name in different countries?

  1. Vernacular name

  2. Tautonyms

  3. Binomial nomenclature

  4. None of the above


Correct Option: C
Explanation:

The binomial nomenclature is the use of the genus and species name system for describing all the living organisms. The method is beneficial as it prevents confusion in the names used in different places and makes it easy that one organism is known by the same name throughout the world. 

Thus, the correct answer is option C.  

Binomial nomenclature is useful because

  1. It makes easy to use the same name of particular thing throughout the world

  2. It helps to explain that things are related

  3. Both A and B

  4. It helps to know about the kingdom only


Correct Option: C
Explanation:
Binomial Nomenclature is the scientific way of naming organisms. It consists of a generic and a specific name for every organism. The advantages of Binomial system are that a single scientific name can be used to an organism across the world and it also helps naming organisms in such a way that similar organisms are named using a common Generic name. It helps us to explain organisms that are related.
So, the answer is, 'Both A and B'.

The main drawback of binomial nomenclature is

  1. The botanical name of the plant depends on the taxonomic system.

  2. The name of the plant is not limited by size.

  3. The name plant does not depend on taxonomy.

  4. Both A and B


Correct Option: D
Explanation:
  • The usefulness of botanical names is limited by the fact that taxonomic groups are not fixed in size; a taxon may have a varying circumscription. The group of a particular botanical name refers to can be quite small according to some people and quite big according to others.
  • Unlike the common name which took size, uses and appearance into consideration, binomial names were only based on taxonomic system.
So, the correct option is 'Both A and B'.

The usefulness of botanical name is limited by

  1. The size of taxonomic group

  2. Type of taxon

  3. The name of taxon

  4. None of the above


Correct Option: A
Explanation:

The usefulness of botanical names is limited by the size of the taxonomic group. The taxonomic groups are not fixed in size. It may have circumscription depending on the taxonomic system. Hence, the botanical name may belong to either too small or too big group.

Thus, the correct answer is option A.

The limitation of binomial nomenclature is

  1. Hard to learn names

  2. Names are unfamiliar to common people

  3. Names are long

  4. All of the above


Correct Option: D
Explanation:
Binomial Nomenclature system was classification which was popularized by Carl Von Linnaeus consists of a Genus and a Species name both of which are in Latin or Latinised form. It has great advantages along with some disadvantages too such as difficulty in learning latin names, the names being unfamiliar to common masses, the names being long compared to the common names.
So, the correct answer is, 'All of the above'.

ICZN was adopted in 

  1. 1960

  2. 1970

  3. 1964

  4. 1974


Correct Option: C
Explanation:

ICZN was adopted in 1964 with an object to assign a unique and scientific name of every taxon, it also regulates how these naming will be documented and used in literature. They provide universality in the naming or nomenclature.

So, the correct option is '1964'.

ICVN is

  1. International Code of Veterinary Nomenclature

  2. International Code of Viral Nomenclature

  3. International Code of Vertebrate Nomenclature

  4. International Code of Vertebrate Names


Correct Option: B
Explanation:

ICVN is referred to as the International Code of Viral Nomenclature. It is concerned with the correct classification and nomenclature of different strains of a virus. It is international and universally applied to all viruses.

So, the correct option is 'International Code of Viral Nomenclature'.

ICBN is connected with 

  1. Correct nomenclature of animals.

  2. Correct nomenclature of plants.

  3. Correct nomenclature of biochemicals.

  4. All of the above.


Correct Option: B
Explanation:

The International Code of Botanical Nomenclature (ICBN) is the set of rules and recommendations dealing with the formal botanical names that are given to plants. Its intent is that each taxonomic group of plants has only one correct name that is accepted worldwide. The value of a scientific name is that it is an identifier; it is not necessarily of descriptive value, or even accurate.

So, the correct option is 'Correct nomenclature of plants'.

Type specimen of a new species has to be 

  1. Described in Latin

  2. Published in recognized scientific journal

  3. Kept in a recognised herbarium or collection

  4. All of the above


Correct Option: D
Explanation:

A type specimen is an original specimen from which a description of a new species is made. It is described in Latin and published in a recognized scientific journal. To preserve the specimen, it is kept in a recognized herbarium or collection for future references.

So, the correct option is 'All of the above'.

ICBN was adopted in 

  1. 1951

  2. 1971

  3. 1961

  4. 1981


Correct Option: C
Explanation:

ICBN (International Code of Botanical Nomenclature) was adopted in the year 1961. It is the set of rules and recommendations dealing with the classification and botanical names that are given to plants. The nomenclature is universal and according to the system of binomial nomenclature.

So, the correct option is '1961'.

Lady's Finger is actually 

  1. Okra

  2. Smooth Guard

  3. Ridge guard

  4. Cucumber


Correct Option: A
Explanation:

Lady Finger is actually known as Okra. It is a flowering plant in the mallow family also known as gumbo. It is valued for its edible green seed pods. Originating in Africa, the plant is cultivated in tropical, subtropical and warm temperate regions around the world.

So, the correct option is 'Okra'.

If a botanist want to study nomenclature of a similar species, the scientist will study

  1. Syntype

  2. Isotype

  3. Neotype

  4. Mesotype


Correct Option: B
Explanation:
  1. Syntype: It refers to two or more specimens collected by the author simultaneously of the same species.
    2. Isotype: It is a duplicate of the holotype collected and can be used for studies when holotype is not accessible.
    3. Neotype: It refers to the new specimen collected when the original material is missing.
    So, the correct option is 'Isotype'.

Two similar holotypes are called 

  1. Mesotypes

  2. Meotypes

  3. Syntypes

  4. Isotypes


Correct Option: D
Explanation:
  • A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described.
  • An isotype is a duplicate of the holotype and is often made for plants, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering.
  • Hence Two similar holotypes are called isotypes
  • So, the correct answer is 'Isotypes'

Which of the following is the correct binomial nomenclature?

  1. APIS INDICA

  2. Trypanosoma gambiense

  3. Ficus Bengalensis

  4. Magnifera indica


Correct Option: B
Explanation:

The various conventions followed while writing Binomial nomenclature are : 

1. It is conventional to write the first letter of the generic name with a capital and the first letter of the specific name with a small letter.
2. Scientific names must be underlined separately when written by hand.
In printed matter, these names are printed in Italic and underlined when handwritten.
In option A, all the letters are capitalized.
In option B, all conventions are followed.
In option C, the generic name is wrongly capitalized and not written in italics.
In option D, the name is not written in italics.
So, the correct option is 'Trypanosoma gambiense'.

In nomenclature 

  1. Both genus and species are printed in italics.

  2. Genus and species may be of same name.

  3. Both in genus and species the first letter is capital.

  4. Genus is written after the species.


Correct Option: A
Explanation:
The various conventions followed while writing Binomial nomenclature are : 
1. The first letter of the genus name must be capital and the first letter of the species name must be a small letter.
2. Scientific names must be underlined separately when written by hand.
3. In printed matter, these names are printed in Italic and underlined when handwritten.
So, the correct option is 'Both genus and species are printed in italics'.

In Oryza, sativa stands for 

  1. Name of species

  2. Specific nomenclature

  3. Specific epithet

  4. Specific name


Correct Option: C
Explanation:
Oryza sativa is the binomial name of rice.
Here, Oryza is genus and sativa represents specific epithet as it distinguishes 'rice' from other members of genus Oryza.
So, the correct option is 'Specific epithet'

Which of the following statements regarding universal rules of nomenclature is wrong?

  1. Both the words in a biological name when handwritten are separately underlined.

  2. The first word in the biological name represents the genus.

  3. The first word denoting the genus start with a capital letter.

  4. Biological names are generally Greek and written in italics.


Correct Option: D
Explanation:

There are certain rules regarding biological nomenclature like - 

  1. Both the words in a biological name when handwritten are separately underlined.
  2. The first word in the biological name represents the genus.
  3. The first word denoting the genus starts with a capital letter.
Also, biological names are generally in Latin and written in italics.
So, the correct option is 'Biological names are generally Greek and written in italics'.

Which of the following has correct specific epithet?

  1. Indica mangifera

  2. Leo Panthera

  3. Canis familiaris

  4. Ascaris


Correct Option: C
Explanation:

  • According to rules of binomial nomenclature first word in the scientific name is the generic name (represents genus ) and it starts with capital initial. The second word is specific epithet which starts with a small initial. 
  • Only Option C follows these rules.
  • Note that option A seems like a correct option but it has exchanged a generic name and specific epithet. The correct name for mango is 'Mangifera indica'. 
So, the correct option is 'Canis familiaris'.

Read the statements and identify the incorrect one.

  1. Scientific names are often descriptive.

  2. Scientific names indicate relationship.

  3. Scientific names favour multiple naming.

  4. Scientific names are used all over the world.


Correct Option: C
Explanation:

Scientific names do not favor multiple naming as it will create confusion among the scientists over the world. Also, the very first significance of the scientific name is to give a unique single name to each species.

So, the correct option is 'Scientific names favor multiple naming'.

The generic name of mango is 

  1. Mangifera indica

  2. Indica

  3. Mangifera

  4. Indica Mangifera


Correct Option: C
Explanation:

The generic name refers to the first part of a binomial. The binomial name is comprised of the generic name and the specific epithet. Accordingly, the generic name is the genus of the species and is written by starting with a capitalized letter. As the binomial name of mango is 'Mangifera indica' where 'Mangifera' represents genus, hence it is the generic name and 'indie' represents specific epithet.

So, the correct option is 'Mangifera'.

Specific epithet is

  1. First word in the scientific name of a species

  2. Second word in the scientific name of a species

  3. Both A and B

  4. None of the above


Correct Option: B
Explanation:

  • The first word in the scientific name is the generic name ( represents the genus) and the second word is the specific epithet ( represent species name ). 
  • For example - in Homo sapiens, sapiens is the specific epithet.
So, the correct option is 'Second word in the scientific name of a species'.

Naked ape is?

  1. Homo sapiens

  2. Simia pygmaeous

  3. Gorilla

  4. Pan satyrus


Correct Option: A
Explanation:
The Naked Ape is the modern human or Homo sapiens of the order Primates. They are characterized by their erect posture, dexterity, complex linguistics, bipedal locomotion, higher brain complexity and societal structures. They are called the Naked Ape as they have relatively less or less dense body hair compared to other primates.
So, the correct answer is 'Homo sapiens'.

Match and find the correct option.

I II
(a) Strobilanthus (i) Tiger Claw Plant
(b) Martynia (ii) Century Plant
(c) Lodoicea (iii) Neelakuranji
(d) Viola (iv) Common Pansy
(v) Double Coconut
  1. a-ii, b-i, c-iii, d-v

  2. a-iii, b-i, c-v, d-iv

  3. a-ii, b-iii, c-i, d-v

  4. a-iii, b-ii, c-iv, d-v


Correct Option: B
Explanation:

  • Strobilanthus is the botanical name of neelakuranji plants.
  • Martynia is the botanical name of the Tiger claw plant
  • Lodoicea is the botanical name of double coconut
  • viola is the botanical name of common pansy 
So, the correct answer is option B.

In binomial nomenclature.

  1. Both in genus and species the first letter is capital

  2. Both genus and species are printed in italics

  3. Genus and species may be of same name

  4. Genus is written after the species


Correct Option: A

When the generic name and the specific epithet, in a binomialo have exactly the same spelling, the binomial is known as ______________.

  1. Autonym

  2. Basionym

  3. Synonym

  4. Tautonym


Correct Option: A

Besides Orchidaceae, pollinia are also found in _______________.

  1. Asclepiadaceae

  2. Bignoniaceae

  3. Poaceae

  4. Scrophulariaceae


Correct Option: A

In a binomial system of nomenclature when there are three words used for a species name _________________.

  1. Two words of the specific epithet are joined/hyphen

  2. First word of the specific epithet should be eliminated

  3. Whole specific epithet is to be rejected

  4. Another substitute specific epithet is to be chosen


Correct Option: A

With reference to botanical nomenclature, in type method ___________________.

  1. Type is for the name and not for the species

  2. Type is for the species and not for the name

  3. Type is for populations not either for names or species

  4. Type is for the genus


Correct Option: A

When Acetabularia is in uninucleate condition, then it is in _______________.

  1. Vegetative phase

  2. Reproductive phase

  3. Cyst formation stage

  4. Gamete formation stage


Correct Option: A

Consider the following statements. The International code of botanical nomenclature prescribes that.
a. Every taxon or group of plants can bear only one correct name
b. A name could be applied to one or more than group of plants
c. The rank of species is basic in nomenclature
Which of the statements given are correct?

  1. $1, 2$ and $3$

  2. $1$ and $2$

  3. $2$ and $3$

  4. $1$ and $3$


Correct Option: A

Which one of the following is NOT permissible according to the rules of botanical nomenclature?

  1. Autonym

  2. Basionym

  3. Tautonym

  4. Synonym


Correct Option: A

Linnaeus in his book "Species plantarum" (1753) proposed scientific names and Latin diagnosis of Mangifera indica, Saraca indica, Tamarindus indica, Rosa indica and Solanum nigrum. In the above case, how many species and genera respectively described by Linnaeus

  1. (1) 7,5

  2. (2) 5,7

  3. (3) 5,5

  4. (4) 4,5


Correct Option: C
Explanation:

Scientific description of an organism includes a two name or binomial system of Genus and species/specific epithet. The name of scientist who has described the genus and species is written in abbreviated form after the specific epithet. For example, Linnaeus is written as Linn, or L. All the Genera and species in the question have been described by Linneaus 

So, the correct answer is ' 5,5'

Polynomial classification has recently begun to replace the binomial system

  1. True

  2. False


Correct Option: B
Explanation:
Polynomial System of nomenclature was the older form of naming organisms before the advent of binomial system. In polynomial system, a generic name and specific name which consisted of many words were used. It was eventually found to be incompatible and hence was replaced by binomial system.
So, the correct answer is, 'False'.

Choose the correct answers from the alternatives given.
The process of giving scientific names to organisms is called:

  1. taxonomy

  2. nomenclature

  3. systematics

  4. grouping


Correct Option: B

Choose the correct answers from the alternatives given.
Binomial nomenclature means writing the names of organisms in two words denoting their:

  1. genus and species

  2. species and races

  3. genus and family

  4. none of these


Correct Option: A

ICBN is

  1. International Code of Botanical Naming

  2. International Code of Botanical Nomenclature

  3. International Class of Botanical Nomenclature

  4. International Classification of Botanical Nomenclature


Correct Option: B
Explanation:

  • ICBN stands for - International Code of Botanical Nomenclature. 
  • It is the set of rules and recommendations for naming plants, fungi, and algae as the ICBN applies not only to plants, as they are now defined, but also to other organisms traditionally studied by botanists.
So, the correct option is 'International Code of Botanical Nomenclature'.

Binomial nomenclature was introduced by :

  1. John Ray

  2. Aristotle

  3. A.P. Decandolle

  4. Carlous Linnaeus


Correct Option: D
Explanation:
  • Carlous Linnaeus is also known as 'Father of modern taxonomy' for introducing the artificial classification system and binomial nomenclature.
  • The term 'species' was coined by Jonh Ray.
  • Father of Biology is Aristotle.
  • A.P. Decandolle introduced the term 'taxonomy'.

The scientific name of mango is written as Mangifera indica L. Pickup the correct statement about the significance of letter 'L'.

  1. Letter 'L' singnifies Latin language.

  2. The name is reverse with indica preceding Mangifera.

  3. Letter 'L' signifies the taxonomist, Linnaeus.

  4. Letter 'L' is superfluous.


Correct Option: C
Explanation:

Carl Linnaeus was a Swedish botanist, physician and zoologist, who laid the foundations for the mordern biological naming scheme of biological nomenclature. He is known as the father of taxonomy and is also considered one of the fathers of modern ecology. In botany, the author abbreviation used to indicate Linnaeus as the authority for species name. In older publications, sometimes the abbreviation "Linn" is found.

Scientific name of plants are mostly derived from which of the following language?

  1. Greek

  2. French

  3. Sanskrit

  4. Latin


Correct Option: D
Explanation:

Scientific names are used as means of classifying or identifying scientific plants. At the time when biologist Carl Linnaeus published books of binomial nomenclature, Latin was used in western Europe as the common language of science and scientific names were in Latin or Greek. Linnaeus continued this practice. 

How many of the given features are associated with binomial nomenclature? 


Descriptive name, Generic epithet, Specific epithet, Latin language, Names of subspecies or variety should be italicised or underlines.

  1. 4

  2. 3

  3. 2

  4. 1


Correct Option: A

Plant nomenclature means

  1. To give names to plants without any rules.

  2. Nomenclature of plants under the international rules.

  3. Nomenclature of plants in local language.

  4. Nomenclature of plants in English language.


Correct Option: B
Explanation:

Nomenclature is application of correct name to plants and taxonomic rank under the rule as drawn by ICBN (International Code for Botanical Nomenclature); option A is incorrect and B is correct. Scientific names formulated in Latin language are preferred over those in vernacular languages due to restricted use and application of these names in one or two languages and non-availability of vernacular names for all known plant species; this makes option C incorrect. Scientific names are not formulated in English but in Latin because latter one is a dead language and the meanings of words are not prone to changes as is the case with English; this makes option D incorrect. Thus, the correct answer is option B.

Most of the botanical names are drawn from which of the following language?

  1. German

  2. Greek

  3. Latin

  4. Spanish


Correct Option: C
Explanation:

Scientific names are derived from Latin language. This is because it is a dead language and the meanings of words are not prone to changes.

The science of naming plants is known as

  1. Classification

  2. Identification

  3. Nomenclature

  4. Taxonomy


Correct Option: C
Explanation:

The art of naming an object is, in fact, a science called nomenclature. Binomial nomenclature is followed worldwide to identify an organism. Every organism has a scientific name, which is a combination of genus and species. Most of these names are in the Latin language. For example, the scientific name of human is Homo sapiens and that of frog is Rana tigrina.

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