Assertion : Chimpanzee is the closest relative of present day humans.
Reason : The banding pattern in the autosome number 3 and 6 are remarkably similar.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

A

Explanation

The banding pattern of human chromosome number 3 and 6 are compared with those of particular autosomes in the chimpanzee. They show remarkable similarity in the fine structural organisation of chromosome thus provide molecular evidence of a common origin for a man and chimpanzee.