| Microsporogenesis | Megasporogenesis |
| $1$. It occurs in the anther. | $1$. It occurs in the ovule. |
| $2$. Microspore mother cells undergo meiosis to form a microspore tetrad. | $2$. Megaspore mother cells undergo meiosis to form a linear tetrad of megaspores. |
| $3$. Four functional microspores (pollen grains) are formed from one microspore mother cell. | $3$. Generally,only one functional megaspore is formed from one megaspore mother cell,while the other three degenerate. |
| $4$. It leads to the formation of male gametophytes. | $4$. It leads to the formation of the female gametophyte (embryo sac). |
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