NEETBotanySexual Reproduction in Flowering Plants
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The perisperm observed in the mature seeds of black pepper and beet is anatomically distinct from the endosperm. Reason (R): Perisperm is the persistent remnant of nucellus, whereas endosperm develops from the primary endosperm nucleus. In the light of the above statements, choose the most appropri
Options
- ABoth Assertion (A) and Reason (R) are correct and Reason (R) is the correct explanation of Assertion (A).
- BBoth Assertion (A) and Reason (R) are correct but Reason (R) is not the correct explanation of Assertion (A).
- CAssertion (A) is correct but Reason (R) is incorrect.
- DAssertion (A) is incorrect but Reason (R) is correct.
Correct answer
A. Both Assertion (A) and Reason (R) are correct and Reason (R) is the correct explanation of Assertion (A).
Step-by-step solution
Assertion (A) is correct because perisperm and endosperm are two different nutritive tissues found in seeds. Black pepper and beet are classic examples of seeds possessing perisperm. Reason (R) is also correct and correctly explains the Assertion. Perisperm represents the residual, persistent nucellus (diploid maternal tissue) in the seed. In contrast, endosperm is a newly formed tissue that develops from the triploid primary endosperm nucleus after double fertilization. Because they have entirely different develop