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Biology · 2026 · 1 mark
Sexual Reproduction in Flowering PlantsPre-fertilisation: Structures and Events1 markUnderstandassertion reason
CBSE 2026 · Region 4 · Set 1 · Q13
Assertion (A): Cleistogamous flowers have assured seed set. Reason (R): Cleistogamous flowers are invariably autogamous and do not depend on any…
Assertion (A) : Cleistogamous flowers have assured seed set.
Reason (R) : Cleistogamous flowers are invariably autogamous and do not depend on any pollinating agents.
Official answer
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
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CBSE Class 12 Biology past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.