A: Triple fusion is associated with sexual re | vedclass

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(D) Triple fusion is a characteristic feature unique to angiosperms (flowering plants) and does not occur in gymnosperms,even though both are spermato

Vedclass · Accepted Answer

Both Assertion and Reason are incorrect.

Vedclass · Answer

(D) Triple fusion is a characteristic feature unique to angiosperms (flowering plants) and does not occur in gymnosperms,even though both are spermatophytes.Therefore,the Assertion is incorrect.Triple fusion involves the fusion of one male gamete with two polar nuclei (or a secondary nucleus) to form the primary endosperm nucleus $(PEN)$,which develops into the endosperm,not a 'definitive nucleus' as nutritive tissue.Thus,the Reason is also incorrect.

$A$: Triple fusion is associated with sexual reproduction in all spermatophytes.
$R$: It is required to form the definitive nucleus as nutritive tissue.

Similar Questions

Choose the incorrect statement.

Double fertilization is observed in .......... .

Triple fusion in angiosperms is the fusion of the second sperm with:

Which of the following features cannot be shown by the structure which is the vital link between two generations ensuring continuity of species?

In angiosperms,the process of double fertilization required to initiate the development of endosperm involves:

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$A$: Triple fusion is associated with sexual reproduction in all spermatophytes.$R$: It is required to form the definitive nucleus as nutritive tissue.