Give differences: Microsporogenesis and Megasporogenesis.

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Microsporogenesis Megasporogenesis
$1$. This process occurs in the anther. $1$. This process occurs in the ovule (within the ovary).
$2$. Meiotic division of the pollen mother cell $(PMC)$ forms a microspore tetrad. $2$. Meiotic division of the megaspore mother cell $(MMC)$ forms a megaspore tetrad.
$3$. Four functional microspores are usually produced from a tetrad. $3$. Usually,only one functional megaspore is produced; the other three degenerate.
$4$. It leads to the formation of male gametophytes (pollen grains). $4$. It leads to the formation of the female gametophyte (embryo sac).

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