The wings of a bird and the wings of an insect are

1. Homologous structures and represent divergent evolution

2. Analogous structures and represent convergent evolution

3. Phylogenetic structures and represents divergent evolution

4. Homologous structures and represent convergent evolution

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
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Industrial melanism is an example of

1. Neo Darwinism

2. Natural Selection

3. Mutation

4. Neo Lamarckism

Subtopic:  Genetic Basis of Adaptation |
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Which is the most common mechanism of genetic variation in the population of a sexually reproducing organism?
1. Transduction
2. Chromosomal aberrations
3. Genetic drift
4. Recombination

 

Subtopic:  Difference Between Drift & Selection | Population Genetics |
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Which of the following had the smallest brain capacity?
1. Homo erectus
2. Homo sapiens
3. Homo neanderthalensis
4. Homo habilis

 

Subtopic:  Evolution Prior to Ape Man: 1 | Evolution Prior to Ape Man: 2 | Evolution Prior to Ape Man |
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A population will not exist in Hardy-Weinberg equilibrium if
1. individuals mate selectively
2. there are no mutations
3. there is no migration
4. the population is large

Subtopic:  Hardy Weinberg Law: 1 | Hardy Weinberg Law: 2 | Hardy Weinberg Law |
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In a population of 1000 individuals, 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is :
1. 0.4
2. 0.5
3. 0.6
4. 0.7

Subtopic:  Hardy Weinberg Law: 1 | Hardy Weinberg Law |
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Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of :

1. Analogous organs

2. Adaptive radiation

3. Homologous organs

4. Convergent evolution

Subtopic:  Concept of Organic Evolution: Evidence: 1 | Concept of Organic Evolution: Evidence |
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Which one of the following are analogous structures?

1. Wing of Bat and Wings of Pigeon

2. Gills of Prawn and Lungs of Man

3. Thorns of Bougainvillea and Tendrils of Cucurbita

4. Flippers of Dolphin and Legs of Horse.

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
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The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of :
 
1. Homologous organs that have evolved due to divergent evolution.
 
2. Analogous organs that have evolved due to convergent evolution.
 
3. Analogous organs that have evolved due to divergent evolution.
 
4. Homologous organs that have evolved due to convergent evolution.

 

Subtopic:  Concept of Organic Evolution: Evidence: 1 | Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
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The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called:
 
1. Convergent evolution
 
2. Non-random evolution
 
3. Adaptive radiation
 
4. Natural selection

 

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
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