Question

What kind of evidence suggested that man is more closely related with chimpanzee than with other hominoid apes?

• A. Evidence from DNA from sex chromosomes only.
• B. Comparison of chromosome morphology only.
• C. Evidence from fossil remains and the fossil mitochondrial DNA alone.
• D. Evidence from DNA extracted from sex chromosomes, autosomes and mitochondria.

Answer 1

The correct option is D Evidence from DNA extracted from sex chromosomes, autosomes and mitochondria.

Chimpanzee is more closely related to man than other hominoids. It is evidenced by chromosome banding pattern, DNA extracted from sex chromosomes, autosomes and mitochondria. Molecular clock based on mitochondrial DNA are used to date recent events because this DNA mutates 5-10 times faster than nuclear DNA. Some similarities between human and chimpanzee are - DNA matching shows human similarity with chimpanzee. There is little difference in banding pattern in chromosomes 3 and 6 in human and chimpanzee. Serum test indicate maximum homology between human and chimpanzee.

Therefore, the correct answer is option D.