Question
Medium
Solving time: 3 mins
Assertion (A): Cleistogamous flowers can produce seeds without pollination.
Reason (R) : Cleistogamous flowers have no chance of cross pollination and they are invariably autogamous.
(A) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
(B) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
(C) Assertion (A) is true but reason (R) is false.
(D) Assertion (A) is false but reason (R) is true.
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Text solutionVerified
Option (A) is correct.
Cleistogamous flowers mean anther and stigma lie close each other in the closed flower. They are bisexual which cannot open even at maturity and thus self-pollination occurs. As they are closed consider as invariable autogamous.
Cleistogamous flowers mean anther and stigma lie close each other in the closed flower. They are bisexual which cannot open even at maturity and thus self-pollination occurs. As they are closed consider as invariable autogamous.
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Question Text | Assertion (A): Cleistogamous flowers can produce seeds without pollination. Reason (R) : Cleistogamous flowers have no chance of cross pollination and they are invariably autogamous. (A) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A). (B) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A). (C) Assertion (A) is true but reason (R) is false. (D) Assertion (A) is false but reason (R) is true. |
Topic | Sexual Reproduction in Flowering Plants |
Subject | Biology |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 121 |