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The Story of Life and Organisms - 1

Description: The Story of Life and Organisms - 1
Number of Questions: 15
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Tags: The Story of Life and Organisms - 1 Oparin - Haldane Hypothesis Theories of Evolution Fossils and Evolutionary History
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What did the Miller-Urey's experiment prove?

  1. Biochemical theory of origin of life

  2. Theory of spontaneous generation

  3. Theory of eternity

  4. Theory of biogenesis

  5. Symbiotic theory of evolution of eukaryotic cells


Correct Option: A
Explanation:

Miller and Urey showed that amino acids like glycine and alanine and even more complex compounds can be synthesised in vitro and proved the biochemical theory of origin of life.

What did Oparin named nucleic acids which were capable to replicate but were not surrounded by any membrane?

  1. Coacervates

  2. Protovirus

  3. Ebioants

  4. Free genes

  5. Microspheres


Correct Option: D
Explanation:

They were capable of replicating themselves but were not membrane-bound.

What is the process of formation of living cells from inorganic and organic compounds called?

  1. Biogenesis

  2. Abiogenesis

  3. Miracle of god

  4. Big bang

  5. Panspermia


Correct Option: B
Explanation:

The first living cell arose from simple inorganic and organic compounds; a phenomenon called abiogenesis.

Who proved biogenesis by using goose-neck flask?

  1. Louis Pasteur

  2. Abbe Spallan-zani

  3. Francisco Redi

  4. Joseph Needham

  5. Van Helmont


Correct Option: A
Explanation:

He proved with goose-neck flask that air contains spores of microorganisms. Thus, biogenesis theory was strongly supported by Pasteur's experiment.

Who wrote the book titled 'The Origin of Life on Earth'?

  1. Charles Darwin

  2. A. I. Oparin

  3. Ernst Haeckel

  4. Stanley Miller

  5. Louis Pasteur


Correct Option: B
Explanation:

He presented the biochemical explanation of origin of life in his book 'The Origin of Life on Earth'.

What is Darwin’s explanation on the way in which evolution occurs?

  1. God determines which species should evolve.

  2. Adaptations enable one species to produce more offsprings by natural selection.

  3. Certain species undergo mutations.

  4. The traits used most often persist longer.


Correct Option: B
Explanation:

Darwin explained that adaptations enable one species to produce more offsprings by natural selection.

The industrial melanism shown by peppered moth is an ideal example of natural selection. Identify the type of natural selection in industrial melanism.

  1. Stabilising selection

  2. Disruptive selection

  3. Directional selection

  4. Artificial selection

  5. Sexual selection


Correct Option: C
Explanation:

Industrial melanism is directional change,  i.e.  more individuals acquire value other than the mean character value.

Identify the types of natural selection marked as A, B and C in the diagram.

  1. A - stabilising selection, B - directional selection and C - disruptive selection

  2. A - stabilising selection, B - disruptive selection and C - directional selection

  3. A - directional selection, B - stabilising selection and C - disruptive selection

  4. A - directional selection, B - disruptive selection and C - stabilising selection

  5. A - disruptive selection, B - directional selection and C - stabilising selection


Correct Option: D
Explanation:

In the diagram, A is directional selection, B is a disruptive selection and C is a stabilising selection. Therefore, the given option is correct.

Identify the periods marked a, b, c and d in the given diagram showing evolution of vertebrates.

  1. a - Triassic, b - Carboniferous, c - Tertiary and d - Cretaceous

  2. a - Tertiary, b - Triassic, c - Cretaceous and d - Carboniferous

  3. a - Triassic, b - Carboniferous, c - Cretaceous and d - Tertiary

  4. a - Carboniferous, b - Triassic, c - Cretaceous and d - Tertiary

  5. a - Cretaceous, b - Triassic, c - Carboniferous and d - Tertiary


Correct Option: D
Explanation:

In the diagram a-Carboniferous, b-Triassic, c-Cretaceous and d- Tertiary. Therefore, the given option is correct.

Which of the following is a connecting link between phylum Annelida and phylum Arthropoda?

  1. Tachyglossus

  2. Archeopteryx

  3. Balanoglossus

  4. Peripatus

  5. Seymurea


Correct Option: D
Explanation:

Peripatus is a connecting link between annelida and arthropoda.

Which of the following factors is the ultimate source of genetic variability leading to evolution?

  1. Migration

  2. Natural selection

  3. Genetic drift

  4. Mutation

  5. Gene flow


Correct Option: D
Explanation:

Mutation is the ultimate source of genetic variability which brings about evolution. Mutation is the ultimate source of genetic variability which brings about evolution and is not gene flow.

Which of the following is the extinct human with brain size of 1400 cc who lived near east and central Asia about 1,00,000 to 40,000 years ago and also used hides to protect themselves?

  1. Homo habilis

  2. Homo erectus

  3. Australopithecus

  4. Neanderthal man

  5. Cro-magnon man


Correct Option: D
Explanation:

Neanderthal man lived about 1,00,000- 40,000 years ago. Cro-magnon man lived about 43000 years ago.

Which of the following scientists gave the 'Theory of Natural Selection'?

  1. J. B. S. Haldane

  2. Lamarck

  3. Gregor Mendel

  4. Charles Robert Darwin

  5. Harold C. Urey


Correct Option: D
Explanation:

Charles Robert Darwin gave the 'Theory of Natural Selection'.

Which of the following varieties of cabbage was developed when some farmers used artificial selection for sterile flowers of wild cabbage?

  1. Broccoli

  2. Cauliflower

  3. Kohlrabi

  4. Cabbage

  5. Kale


Correct Option: B
Explanation:

This is the correct option.

Which of the following traits cannot be inherited from the parents?

  1. Cleft chin

  2. Eye colour

  3. Free earlobe

  4. Large muscles

  5. Facial dimples


Correct Option: D
Explanation:

This is the correct option. This is a wrong option.

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