Species formation without branching of the evolutionary line of descent is called as:
1. anagenesis, or phyletic evolution
2. cladogenesis, or divergent evolution
3. convergent evolution
4. allopatry

Subtopic:  Modern Theory of Evolution | Natural Selection | Sources of Variation |
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What exactly does the nature act upon when selecting an organism?
1. dominant alleles
2. recessive alleles
3. phenotype
4. combined genotype

Subtopic:  Darwin's Theory | Additional Theories of Darwin | Natural Selection |
 57%
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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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Which of the following is used as an atmospheric pollution indicator?

1. Lepidoptera 2. Lichens
3. Lycopersicon 4. Lycopodium
Subtopic:  Natural Selection |
 96%
From NCERT
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