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NEET UG BIOLOGY MCQ: EVOLUTION
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Which of the following are the correct pair of homologous organs? I. Hands of man and wings of bat, II. Wings of bat and wings of cockroach, III. Wings of bird and wings of butterfly, IV. Fins of fish and forelimbs of horse, V. Forearm of human and forelimbs of horse. The correct combination is visible in option
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Correct option: B
I and V
Option B (I and V) is correct because hands of man and wings of bat, and forearm of human and forelimbs of horse are examples of homologous structures, sharing a common ancestry.
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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.
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.