Evolution (Zoology)
- Random genetic drift in a population probably results from
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interbreeding within this population
Correct Option: C
interbreeding within this population
- Darwin in his 'Natural Selection Theory' did not believe in any role of which one of the following in organic evolution?
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In any population, there is always competition for space and food resources.
Correct Option: A
In any population, there is always competition for space and food resources.
- Which one of the following describes correctly the homologous structures?
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Those organs which have a common origin and are built on the same anatomical pattern, but perform different functions and are modified accordingly.
Correct Option: B
Those organs which have a common origin and are built on the same anatomical pattern, but perform different functions and are modified accordingly.
- Convergent evolution is illustrated by
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Independent formation of functionally similar structures by unrelated organism is called convergent evolution.
Correct Option: A
Independent formation of functionally similar structures by unrelated organism is called convergent evolution.
- In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner?
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Migration refers to the movement of individuals into and out of population. Mutation refers to random and sudden heritable variations or changes arising in the genetic constitution.
Correct Option: C
Migration refers to the movement of individuals into and out of population. Mutation refers to random and sudden heritable variations or changes arising in the genetic constitution.