The bones of forelimbs of whales, bats, cheetahs, and men are similar in structure, because:

1.  one organism has given rise to another
2.  they share a common ancestor
3.  they perform the same function
4.  they have biochemical similarities

Subtopic:  Modern Theory of Evolution | Concept of Speciation |
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Analogous organs arise due to:

1. divergent evolution 2. artificial selection
3. genetic drift 4. convergent evolution
Subtopic:  Concept of Organic Evolution: Evidence |
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(p+q)2 = p2 + 2pq + q2 = 1 represents an equation used in:

1. population genetics

2. mendelian genetics

3. biometrics

4. molecular genetics

Subtopic:  Population Genetics |
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The appearance of antibiotic-resistant bacteria is an example of:

1. adaptive radiation

2. transduction

3. pre-existing variation in the population

4. divergent evolution

Subtopic:  Theory of Evolution & Lamarckism |
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Evolution of life shows that life forms had a trend of moving from:

1. land to water

2. dryland to wet land

3. fresh water to sea water

4. water to land

Subtopic:  Definition & Types of Evolution | Concept of Isolation | Concept of Speciation |
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Viviparity is considered to be more evolved because:

1. the young ones are left on their own

2. the young ones are protected by a thick shell

3. the young ones are protected inside the mother's body and are looked after they are born leading to more chances of survival

4. the embryo takes a long time to develop

Subtopic:  Other Theories of Origin of Life | Concept of Speciation | Genetic Basis of Adaptation |
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Fossils are generally found in:

1.Sedimentary rocks2.Igneous rocks
3.Metamorphic rocks4.Any type of rock

Subtopic:  Palentological Evidences of Evolution |
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For the MN-blood group system, the frequencies of M and N alleles are 0.7 and 0.3, respectively. The expected frequency of MN-blood group-bearing organisms is likely to be:

1.42%2.49%
3.9%4.58%

Subtopic:  Hardy Weinberg Law: 1 | Hardy Weinberg Law: 2 |
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Which type of selection explains industrial melanism observed in moth, Biston betularia?

1.Stabilising2.Directional
3.Disruptive4.Artificial

Subtopic:  Concept of Organic Evolution: Evidence |
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The most accepted line of descent in human evolution is:

1.  Australopithecus → RamapithecusHomo sapiensHomo habilis
2. Homo erectusHomo habilisHomo sapiens
3. RamapithecusHomo habilisHomo erectusHomo sapiens
4.  Australopithecus → RamapithecusHomo erectusHomo habilisHomo sapiens.

Subtopic:  Concept of Organic Evolution: Evidence | Evolution Prior to Ape Man | Origin of Life |
 83%
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