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Microsporogenesis....

Microsporogenesis.

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The process of formation of microspores(n) from diploid microspore mother cell(2n) by meiosis is called microsporogenesis.
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(a) Draw a diagrammatic sketch of a transverse section of an anther of an angiosperm . Label its different walls and the tissue forming microspore mother cells. (b) Describe the process of microsporogenesis upto the formation of a microspore. (c) Write the function of 'germ pore' in a pollen grain of an angiosperm.

Arrange the following in a sequence of stages of microsporogenesis (l) Microspore tetrads II. Microspore Mother cell III. Sporogenous tissue IV. Microspores dissociate from each other V. Release of pollen grains The correct sequence of stages is

Assertion : In a microsporangium, the tapetal cells possess tittle cytoplasm and generally have a single prominent nucleus. Reason : During microsporogenesis, the microspore mother cells (M M Cs) undergo mitotic divisions to produce hapliod microspore tetrads.