NEET UG BIOLOGY MCQ: EVOLUTION

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[A]: 'Ontogeny recapitulates phylogeny' was the concept put forward by Haeckel.

[R]: The embryonic stages show the course of evolution which an adult has gone through during development.

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Correct option: A

Both A and R are true and R is the correct explanation of A

Option A (Both A and R are true and R is the correct explanation of A) is correct because Haeckel's concept states that embryonic development reflects evolutionary history.

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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.