NEET UG BIOLOGY MCQ: EVOLUTION

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Assertion (A): Excess use of herbicides, pesticides has resulted in selection of resistant varieties in a much lesser time.

Reason (R): This evolution is due to non-anthropogenic action.

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Correct option: C

If (A) is true but (R) is false

Option C is correct because the evolution of resistant varieties due to herbicide/pesticide use is an example of anthropogenic action, making the reason false.

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The main point of Darwin’s theory is Which one of the following is not a vestigial structure in Homo sapiens? The brain capacities of Homo habilis were Assertion (A): In mammals the forelimbs perform different functions.

Reason (R): The forelimbs in different mammals consist of different sets of bones. Identify the phenomenon in which the members of a species do not interbreed with the members of other species or same species Assertion: Organic compounds first evolved in earth required for origin of life were protein and nucleic acid.
Reason: All life forms were in water environment only.