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(B) The transverse section of a young anther shows four wall layers surrounding the microsporangia. $1$. The outermost single layer is the Epidermis $

Vedclass · Accepted Answer

part-$A \rightarrow$ Epidermis,part-$B \rightarrow$ Endothecium,part-$C \rightarrow$ Middle layers,part-$D \rightarrow$ Tapetum

Vedclass · Answer

(B) The transverse section of a young anther shows four wall layers surrounding the microsporangia. $1$. The outermost single layer is the Epidermis $(A)$. $2$. The layer just below the epidermis is the Endothecium $(B)$. $3$. The layers internal to the endothecium are the Middle layers $(C)$,which are usually $2-3$ layers thick. $4$. The innermost layer that nourishes the developing pollen grains is the Tapetum $(D)$. Therefore,the correct identification is: part-$A \rightarrow$ Epidermis,part-$B \rightarrow$ Endothecium,part-$C \rightarrow$ Middle layers,part-$D \rightarrow$ Tapetum.

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

Given below is the diagrammatic sketch of a transverse section of a young anther. Identify the parts labelled $A, B, C$ and $D$ and select the right option about them.

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