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Biotechnology and Its Applications (Class XI)

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Genetically modified rice is rich in which of the following?

  1. Vitamin A

  2. Vitamin B

  3. Proteins

  4. Vitamin E

  5. Vitamin K


Correct Option: A
Explanation:

It enhances the nutritional value of rice. Golden rice was invented to overcome the problem of deficiency of vitamin A, zinc and iron.

Which of the following bacteria was/were used for making insulin for the first time?

  1. Bifidobacterium animalis

  2. Streptococcus pneumoniae

  3. E. coli

  4. Thermobacteria

  5. Cyanobacteria


Correct Option: C
Explanation:

This is the correct answer as this bacterium is easily available and grows fast.

The deficiency of which of the following enzymes can be treated by gene therapy?

  1. Pepsinogen

  2. Ptylin

  3. Adenosine deaminase

  4. Cellulase

  5. Alanine transaminase


Correct Option: C
Explanation:

It is an immune linked enzyme and its deficiency causes immunity disorder. 

The first in-vitro buffalo was called

  1. Pratham

  2. Garima

  3. Dolly

  4. Garima II

  5. Shresth


Correct Option: A
Explanation:

It was the first in-vitro buffalo produced by National Dairy Research Institute in 1990.

Which of the following is not a quality of Bt-cotton?

  1. Pest resistance

  2. Herbicide tolerance

  3. Better nutritional quality

  4. High yield

  5. Resistance to boll worm infestation


Correct Option: C
Explanation:

Correct Answer: Better nutritional quality

Which of the following is not a function of E. coli?

  1. Production of human insulin

  2. Scavenging of oil spills

  3. Production of human growth factor interferons

  4. Production of interleukin

  5. Making of SPP (single protein production)


Correct Option: B
Explanation:

Pseudomonas putida is used for this purpose.

Which of the following is the main reason of SCID?

  1. Deficiency of ptylin

  2. Malnutrition

  3. Anemia

  4. Deficiency of ascorbic acid

  5. Deficiency of adenosine deaminase


Correct Option: E
Explanation:

It is an immunity disorder which causes SCID [Severe Combined Immunodeficiency].

Which of the following peptides is used as an anticoagulant of human blood?

  1. Hirudin

  2. Vasopressin

  3. Polyglycine

  4. Poly(L-lysine)

  5. L-alanyl-L-alanine


Correct Option: A
Explanation:

Hirudin is an anticlotting agent that prevents blood clots from traveling through the bloodstream.

PCR is used for

  1. making multiple copies of a gene

  2. detection of HIV

  3. diagnosis of heart disease

  4. detection of lung diseases

  5. detection of lactose intolerance


Correct Option: A
Explanation:

The polymerase chain reaction (PCR) is a technique used in molecular biology to amplify a single copy or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.

The name of alpha-lactalbumin producing transgenic animal is

  1. Rosie

  2. Pratham

  3. Dolly

  4. Garima

  5. Enviropig


Correct Option: A
Explanation:

In 1997, Rosie, the first transgenic cow, was engineered to produce milk enriched with a human protein called alpha-lactalbumin, making it more nutritionally balanced than natural cow’s milk and suitable for babies and elderly people with special nutritional or digestive needs.

Basmati rice has been patented by which of the following countries?

  1. India

  2. United Kingdom

  3. America

  4. Greece

  5. China


Correct Option: C
Explanation:

In 1997, America patented it.

A transgenic fish is double in size as compared to a normal fish because of

  1. follicle stimulating hormone

  2. growth hormone

  3. somatostatin

  4. thyroid stimulating hormone

  5. interferon


Correct Option: B
Explanation:

It is a growth hormone which doubles the size of fish.

Which of the following animals is used in transgenic experiments for human welfare?

  1. Mus musculus

  2. Acinomyx jubatus

  3. Hippopotamus amphibius

  4. Trachypithecus johnii

  5. Macaca fascicularis


Correct Option: A
Explanation:

Its common name is mouse. Its genome matches with human genome by more than 99%.

When multinational companies exploit biological resources, it is called

  1. biopiracy

  2. biowar

  3. biopatent

  4. biomagnification

  5. eutrophication


Correct Option: A
Explanation:

Biopiracy is the exploitation of biological resources without proper authorisation.

Which of the following bacteria gives Cry proteins?

  1. E. coli

  2. Bacillus anthracis

  3. Yersinia pestis

  4. Pseudomonas

  5. Bacillus thuringiensis


Correct Option: E
Explanation:

Bacillus thuringiensis (Bt) is a spore forming bacterium that produces crystal proteins (Cry proteins), which are toxic to many species of insects.

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