The endothecium,middle layers,and tapetum of | vedclass

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(B) During the development of the anther,the archesporial cells divide periclinally to form two layers: the outer primary parietal layer and the inner

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Primary parietal layer

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(B) During the development of the anther,the archesporial cells divide periclinally to form two layers: the outer primary parietal layer and the inner primary sporogenous layer.The primary parietal layer undergoes further divisions to form the wall layers of the anther,which include the endothecium,middle layers,and the tapetum.The primary sporogenous layer directly gives rise to the microspore mother cells $(MMC)$ or pollen mother cells.Therefore,the endothecium,middle layers,and tapetum are derived from the primary parietal layer.

Column-$I$	Column-$II$
$i$. Nutritive layer	$a$. Epidermis
$ii$. Layer with fibrous thickness	$b$. Middle layers
$iii$. Protective layer	$c$. Tapetum
$iv$. Layer that disintegrates in mature anther	$d$. Endothecium

The endothecium,middle layers,and tapetum of the anther are derived from.......

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