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Development of Male Gametophyte

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Difference between microspore and megaspore

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Q. The megaspore mother cell and the microspore mother cell

Q. Very short answer type :
Arrange the following in chronological order in the life-cycle of an angiosperm . (a) flower, (b) sporophytic plant, (c) seed, (d) fertilization, (e) megaspore-microspore, (f) endosperm-embryo, (g) megaspore mother cell-microspore mother cell, (h) female gametophyte with egg-male gametophyte with sperm nuclei.

Q. Which of the following is not true about microsporogenesis and megasporogenesis?

I) All the cells in the microspore and megaspore tetrad give rise to microspore and megaspore respectively.
II) Both the processes involve meiotic division.
III) One of them occurs in the ovule and the other occurs in the megasporangium.
IV) One of them results in the formation of mature embryo sac and the other results in the formation of pollen grains.

Q. How many pollen grains and ovules are likely to be formed in the anther and the ovary of an angiosperm bearing 25 microspore mother cells and megaspore mother cells respectively?

The number of functional microspores and functional megaspores formed from 100 PMC and 200 MMC respectively

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Development of Male Gametophyte

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