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Development of a Male Gametophyte MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
Quick Facts
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Development of Male Gametophyte is considered one of the most asked concept.
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5 Questions around this concept.
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MEDIUMThe three cells are found in a pollen grain when it is shed at the 3-celled stage
The male gametophyte with the least number of cells is present in:
Formation of the male gametophyte in flowering plants takes place within specialized male reproductive organs called as?
The ploidy level of rhizoids, seta and capsules in Funaria respectively are
Concepts Covered - 1
Development of Male Gametophyte
- The young pollen grain or male gametophyte has a centrally placed nucleus.
- As it grows, the nucleus is pushed to one side and divided through an unequal mitotic division to form a small generative cell and a large vegetative cell or tube cell.
- The generative cell is freely present in the cytoplasm of the vegetative cell.
- Such a pollen grain is 2-celled and is shed like this in 60% of the angiosperms.
- In the rest of the plants, the generative cell divides to form two non-motile male gametes.
- Such a pollen grain is 3-celled.
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