From his experiments, S.L. Miller produced amino acids by mixing which of the following in a closed flask:

1. CH3, H2, NH4 and water vapour at 800°C

2. CH4, H2, NH3 and water vapour at 600°C

3. CH3, H2, NH3 and water vapour at 600°C

4. CH4, H2, NH3 and water vapour at 800°C

Subtopic:  Examples of Chemical Evolution | Urey & Miller Experiment |
 80%
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NEET - 2020
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Flippers of Penguins and Dolphins are examples of:

1. Convergent evolution 2. Industrial melanism
3. Natural selection 4. Adaptive radiation
Subtopic:  Concept of Organic Evolution: Evidence: 2 |
 87%
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Which of the following refers to correct example(s) of organisms that have evolved due to changes in environment brought about by anthropogenic action?

(a) Darwin's Finches of Galapagos islands

(b) Herbicide-resistant weeds

(c) Drug-resistant eukaryotes

(d) Man-created breeds of domesticated animals like dogs

1. (a) and (c)

2. (b), (c) and (d)

3. only (d) 

4. only (a) 

Subtopic:  Darwin's Theory | Concept of Organic Evolution: Evidence |
 72%
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The sum total of all the alleles in a population constitute the

(1) chromosome complement

(2) karyotype

(3) gene pool

(4) allele group

Subtopic:  Hardy Weinberg Law |
 90%
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Good examples of recapitulation theory is

(1) The embryonic membrane of reptiles

(2) Tadpole larva of frog

(3) Placenta of mammals

(4) Canine teeth of the dog

Subtopic:  Concept of Organic Evolution: Evidence |
 50%
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Embryological support for evolution was proposed by:

1.Ernst Heckel2.Karl Ernst von Baer
3.Charles Darwin4.Alfred Wallace

Subtopic:  Embryological Evidence of Evolution |
 77%
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NEET - 2020
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After about how many years of the formation of the earth, life appeared on this planet?

1. 500 billion years

2. 50 million years

3. 500 million years

4. 50 billion years

Subtopic:  Examples of Chemical Evolution | Origin of Life |
 76%
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The phenomenon of the evolution of different species in a given geographical area starting from a point and spreading to other habitats is called:

1. Saltation 2. Co-evolution
3. Natural selection 4. Adaptive radiation

Subtopic:  Concept of Organic Evolution: Evidence: 2 |
 85%
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A Hominid fossil discovered in Java in 1891, now extinct, having a cranial capacity of about 900 cc was:

1. Homo erectus 2. Neanderthal man
3. Homo sapiens 4. Australopithecus

Subtopic:  Introduction to Human Evolution | Classification of Primates |
 80%
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Which of the following statements is correct about the origin and evolution of men?

1. Agriculture came around 50,000 years back.
2. The Dryopithecus and Ramapithecus primates existing 15 million years ago, walked like men.
3. Homo habilis probably ate meat.
4. Neanderthal men lived in Asia between 100000 and 40000 years back.
Subtopic:  Evolution of Homo Sapiens |
 68%
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NEET - 2019
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