Question

Assertion: Chimpanzee is the closest relative of modern humans.

Reason: Humans and chimpanzees have the same banding pattern in chromosome and 99% of their genetic material are identical.

• A. Both assertion and the reason are true and the reason is a correct explanation of the assertion
• B. Both the assertion and reason are true but the reason is not a correct explanation of the assertion
• C. Assertion is true but the reason is false
• D. Both the assertion and reason are false

Answer 1

The correct option is A Both assertion and the reason are true and the reason is a correct explanation of the assertion

Chimpanzee is the closest relative of modern humans as they share a lot of similarities such as the skulls of an adult human and baby chimpanzee are similar, the banding patterns of chromosome of humans and chimpanzees are identical, 99% of genetic material in humans and chimpanzees are also the same, ABO blood group series are present in both, presence of menstrual cycle, absence of tail, and presence of grasping hand.

Comparision between human and chimpanzee chromosomes

Thus, both assertion and the reason are true and the reason is a correct explanation of the assertion.