NEET UG BIOLOGY MCQ: EVOLUTION

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How many of the given statements are incorrect?
I. The Universe is almost 20 billion years old.
II. Analogy indicates common ancestry.
III. When adaptive radiation has occurred in an isolated geographical area, one can call this convergent evolution.
IV. Natural selection is based on certain observations which are factual.
V. Hardy - Weinberg principle says that allele frequencies in a population are unstable.

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Correct option: B

Three

Option B is correct because statements II, III, and V are incorrect, making a total of three incorrect statements.

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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.