NEET UG BIOLOGY MCQ: EVOLUTION

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Arrange the following events of modern concept of evolution sequentially: I. Genetic variations in population, II. Natural selection, III. Heredity IV. Isolation ,V. Speciation.  The correct option is

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Correct option: C

I, IV, III, II, V

Option B (I, III, II, IV, V) is the correct sequence of events in the modern concept of evolution, starting with genetic variations and ending with speciation.

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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.