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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
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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?
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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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