Which one of the following is surrounded by a | vedclass

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(D) The correct answer is $(D)$.In the anther,the primary sporogenous tissue differentiates into microspore mother cells $(MMC)$.These $MMC$ are diplo

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Microspore mother cell

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(D) The correct answer is $(D)$.In the anther,the primary sporogenous tissue differentiates into microspore mother cells $(MMC)$.These $MMC$ are diploid and are initially connected by plasmodesmata.Each $MMC$ is surrounded by a callose wall,which is deposited between the plasma membrane and the primary cell wall.This callose wall is synthesized by the tapetum.Following the deposition of the callose wall,the $MMC$ undergoes meiosis to form a tetrad of microspores.After meiosis,the callose wall is degraded by the enzyme callase,allowing the microspores to separate into individual pollen grains.

Which one of the following is surrounded by a callose wall?

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