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 |
 81%
AIPMT - 2014
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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 |
AIPMT - 2014
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Variation in gene frequencies within populations can occur by chance rather than by natural selection. 
This is referred to as:

1. Genetic drift

2. Random mating

3. Genetic load

4. Genetic flow

Subtopic:  Hardy Weinberg Law |
 85%
From NCERT
AIPMT - 2013
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Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as:

1. Adaptive radiation

2. Natural selection

3. Migration

4. Divergent evolution

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
 83%
From NCERT
AIPMT - 2012
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Which one of the following options gives one correct example of convergent evolution and divergent evolution?

Convergent Evolution Divergent Evolution
1. Eyes of octopus and mammals Bones of forelimbs of vertebrates
2. Thorns of Bougainvillea and tendrils Cucurbita Wings of butterflies and birds
3. Bones of forelimbs of vertebrates Wings of butterfly and birds
4. Thorns of Bougainvillea and tendrils of Cucurbita Eyes of Octopus and mammals
Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
 85%
From NCERT
AIPMT - 2012
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The extinct human who lived 100000 to 40000 years ago, in Europe, Asia, and parts of Africa, with short stature, heavy eyebrows, retreating for heads, large jaws with heavy teeth, stocky bodies, a lumbering gait, and stooped posture was:

1. Homo habilis

2. Neanderthal human

3. Cro-Magnon humans

4. Ramapithecus

Subtopic:  Evolution Prior to Ape Man: 1 | Evolution Prior to Ape Man: 2 | Evolution Prior to Ape Man |
 83%
From NCERT
AIPMT - 2012
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What was the most significant trend in the evolution of modem man (Homo sapiens) from his ancestors?

1.  Shortening of jaws

2.  Binocular vision

3.  Increasing brain capacity

4.  Upright posture

Subtopic:  Evolution of Homo Sapiens |
 76%
From NCERT
AIPMT - 2011
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Darwin's finches are a good example of:

1. industrial melanism

2. connecting link

3. adaptive radiation

4. convergent evolution

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
 89%
From NCERT
AIPMT - 2010
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In the case of peppered moth (Biston betularia), the black-coloured form became dominant over the light-coloured form in England during the industrial revolution. This is an example of:

1. natural selection, whereby the darker forms were selected
2. appearance of the darker coloured individuals due to very poor sunlight
3. protective mimicry
4. inheritance of darker colour character acquired due to the darker environment
Subtopic:  Natural Selection |
 87%
From NCERT
AIPMT - 2009
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Peripatus is a connecting link between:

1. Ctenophora and Plantyhelminthes

2. Mollusca and Echinodermata

3. Annelida and Arthropoda

4. Coelenterata and Poriphera

Subtopic:  Palentological Evidences of Evolution |
 74%
AIPMT - 2009
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