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NEET UG BIOLOGY MCQ: EVOLUTION
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Homo sapiens arose in Africa and moved across continent and developed into distinct races
A. The greatest number of different mitochondrial DNA sequences occurs among modern Africa.
B. Variations are maximum in the mitochondrial DNA of Asians than Africans.
C. Mitochondrial DNA does not show mutation, so any variation cannot be easily traced in family tree.
Choose the correct option which support it.
A. The greatest number of different mitochondrial DNA sequences occurs among modern Africa.
B. Variations are maximum in the mitochondrial DNA of Asians than Africans.
C. Mitochondrial DNA does not show mutation, so any variation cannot be easily traced in family tree.
Choose the correct option which support it.
View answer and explanation
Correct option: A
A only
Option A is correct. The greatest number of different mitochondrial DNA sequences occurs among modern Africans, supporting the "Out of Africa" theory.
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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.
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Reason: All life forms were in water environment only.