Assertion: For normal fertility at least 40 per cent ejaculated sperm must have normal shape and size and at least 60 per cent of them must show vigorous motility.
Reason: The semen along with the sperms called the seminal plasma.

Options

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

Answer

D

Explanation

• The human male ejaculates about 200 to 300 million sperms during a coitus of which, for normal fertility, at least 60 percent sperms must have normal shape and size and at least 40 per cent of them must show vigorous motility.
• The seminal plasma along with the sperm constitute the semen.