In the prothallus of a vascular cryptogam,the | vedclass

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(C) The phenomenon where male and female reproductive organs mature at different times is known as dichogamy. In the prothallus of vascular cryptogams

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self fertilization is prevented

Vedclass · Answer

(C) The phenomenon where male and female reproductive organs mature at different times is known as dichogamy. In the prothallus of vascular cryptogams (like ferns),the antherozoids and eggs mature at different times. This temporal separation ensures that the sperm from one prothallus fertilizes the egg of another,thereby preventing self-fertilization and promoting cross-fertilization.

Column-$I$	Column-$II$
$P$. Psilopsida	$I$. Psilotum
$Q$. Lycopsida	$II$. Selaginella,Lycopodium
$R$. Sphenopsida	$III$. Equisetum
$S$. Pteropsida	$IV$. Dryopteris,Pteris,Adiantum

In the prothallus of a vascular cryptogam,the antherozoids and eggs mature at different times. As a result

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Match the following columns:
Column-$I$ Column-$II$
$P$. Psilopsida $I$. Psilotum
$Q$. Lycopsida $II$. Selaginella,Lycopodium
$R$. Sphenopsida $III$. Equisetum
$S$. Pteropsida $IV$. Dryopteris,Pteris,Adiantum

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