Assertion: Spermatangium of red algae bears trichogyne.
Reason: Trichogyne.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both 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

d

Explanation

The carpogonium (female sex organ) in Nemalion, one of the simplest red alga, consists of a swollen basal part containing the female nucleus and an elongated terminal hair-like structure called the trichogyne. During fertilization the spermatium (male gamete) discharges its contents into the latter. the spermatium nucleus migrates downwards to fuse with the egg nucleus in the basal swollen part of the carpogonium. soon after fertilization the trichogyne shrivels.