A - Only some cells of the sporogenous tissue | vedclass

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(D) Assertion $(A)$ is incorrect because every cell of the sporogenous tissue is a potential pollen mother cell $(PMC)$ and is capable of giving rise

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$A$ is incorrect,$R$ is correct.

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(D) Assertion $(A)$ is incorrect because every cell of the sporogenous tissue is a potential pollen mother cell $(PMC)$ and is capable of giving rise to a microspore tetrad through meiosis.Reason $(R)$ is correct because as the anther develops,the cells of the sporogenous tissue undergo meiotic divisions to form microspore tetrads,which are clusters of four haploid microspores.

$A$ - Only some cells of the sporogenous tissue are capable of giving rise to microspore tetrad.
$R$ - The microspores are arranged in a cluster of four cells - the microspore tetrad.

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$A$ - Only some cells of the sporogenous tissue are capable of giving rise to microspore tetrad.$R$ - The microspores are arranged in a cluster of four cells - the microspore tetrad.