A - Endosperm is formed by the primary endosp | vedclass

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(A) In angiosperms,double fertilization occurs. $1$. The primary endosperm nucleus $(PEN)$,which is formed by the fusion of two polar nuclei and one m

Vedclass · Accepted Answer

$A$ and $R$ are correct.

Vedclass · Answer

(A) In angiosperms,double fertilization occurs. $1$. The primary endosperm nucleus $(PEN)$,which is formed by the fusion of two polar nuclei and one male gamete,develops into the primary endosperm cell $(PEC)$. This cell further divides to form the endosperm,which provides nutrition to the developing embryo. Thus,statement $A$ is correct. $2$. The zygote is formed by the fusion of the egg cell and a male gamete. The zygote undergoes mitotic divisions to develop into an embryo. Thus,statement $R$ is correct. Therefore,both $A$ and $R$ are correct.

Column-$I$ (Organisms)	Column-$II$ (Chromosome number in meiocytes)
$P$. Housefly	$I$. $38$
$Q$. Rat	$II$. $42$
$R$. Dog	$III$. $12$
$S$. Cat	$IV$. $78$
$T$. Fruit fly	$V$. $8$

$A$ - Endosperm is formed by the primary endosperm cell.
$R$ - Embryo is formed from the zygote.

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Match the following columns:
Column-$I$ (Organisms) Column-$II$ (Chromosome number in meiocytes)
$P$. Housefly $I$. $38$
$Q$. Rat $II$. $42$
$R$. Dog $III$. $12$
$S$. Cat $IV$. $78$
$T$. Fruit fly $V$. $8$

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$A$ - Endosperm is formed by the primary endosperm cell.$R$ - Embryo is formed from the zygote.