Plant-Kingdom Question 660

Question: Selaginella is heterosporous. It produces two types of spores. The microspore develops into microgametophyte and the megaspore develops into megagametophyte. With respect to gametophyte, which one statement is correct

Options:

A) The microgametophyte is devoid of chloro $ \sim $ phyll at maturity

B) The megagametophyte possesses chlorophyll at maturity

C) The megagametophyte develops within the walls of megaspore

D) The microgametophyte develops chlorophyll at maturity

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Answer:

Correct Answer: C

Solution:

In Selaginella development of gametophyte is precocious i.e., it germinates within spore when megaspore containing female gametophyte is exposed to light through tri-radiate ridge, it develops chlorophyll in cushion region.