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Q.
The development of male gametophyte in angiosperms is
NTA AbhyasNTA Abhyas 2022
Solution:
The male gametophyte or pollen grain starts its germination inside microsporangia; thus, it is known as in-situ germination. In 60% angiosperms, pollen grain is liberated at the 2-celled stage and after landing on stigma, it undergoes further division to form 2 male gametes. Thus, germination is partially ex-situ on stigma.