Assertion :Almost 100% of genetic make-up of man is similar with chimpanzee. Reason: 94% genetic make-up of man and gibbon is similar.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is D Both Assertion and Reason are incorrect.
Based on the analysis of the sequence of 7100 nucleotides in a segment of DNA from the haemoglobin gene suggests that humans and chimpanzees are closer to one another than chimpanzees and gorillas. They matched at 98.8% of the bases in man and chimpanzee and 97.9% with gorilla and man. The gibbons are sufficiently different to be in their own family of hominids, the Hylobatidae. Along with the Great apes, humans are members of the family Hominidae. Of all living species, people are genetically and evolutionarily closest to the African apes. Subsequently, they have been placed into the same subfamily, the Homininae. The genetic similarity of Man and gibbons is less than 94 %. Thus, option D is correct.

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