Explain the development of male gametophyte in an angiosperm.
Solution and Explanation
The male gametophyte in angiosperms develops within the pollen grain:
1. Microspore Formation: Each microspore undergoes mitotic division to form a small generative cell and a larger vegetative cell.
2. Mature Pollen Grain: The generative cell divides mitotically to produce two male gametes, resulting in a three-celled structure (two male gametes + one vegetative cell).
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