Plant Kingdom Question 490

Question: Assertion : Ramenta are scales which cover young rhizome and leaves of Dryopteris. Reason : Pteridium lacks rementa.

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

Show Answer

Answer:

Correct Answer: B

Solution:

In Dryopteris, young rhizome and leaves are covered with dry, brown, chaffy scales known as ramenta.

In Pteridium, the rhizome and the leaves especially while young, are covered by a felt of simple hairs, and the scales are conspicuously absent.