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NEET UG BIOLOGY MCQ: EVOLUTION
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Which of the following statement is true regarding the theory of natural selection?
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Correct option: C
It has been failed to explain the origin of variations
Option D (It has been successful to explain the origin of variations) is incorrect. Darwin's theory of natural selection explains how existing variations are selected, but it does not fully explain the origin of these variations. The origin of variations was later explained by genetics and mutation.
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Which one of the following is not a vestigial structure in Homo sapiens?
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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.
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.