In flowering plants,the megaspore develops in | vedclass

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(C) In angiosperms,the functional megaspore undergoes three successive free nuclear mitotic divisions to form $8$ nuclei.These nuclei are organized in

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$7$ cells and $8$ nuclei,one of which is an egg cell.

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(C) In angiosperms,the functional megaspore undergoes three successive free nuclear mitotic divisions to form $8$ nuclei.These nuclei are organized into $7$ cells: $3$ antipodal cells at the chalazal end,$2$ synergids and $1$ egg cell at the micropylar end (forming the egg apparatus),and $1$ large central cell containing $2$ polar nuclei.Thus,the mature embryo sac is $7$-celled and $8$-nucleate.

List-$I$	List-$II$
$A$. Hilum	$I$. Residual persistent nucellus
$B$. Perisperm	$II$. Basal part of ovule
$C$. Chalaza	$III$. Junction between ovule and funicle
$D$. Funicle	$IV$. Stalk by which ovule is attached to placenta

In flowering plants,the megaspore develops into the embryo sac,which contains .....

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