Indicate: 1) methods of cell division during the formation of microspores from sporogenous tissue

Indicate:
1) methods of cell division during the formation of microspores from sporogenous tissue;
2) methods of division in the formation of vegetative and generative cells;
3) the number of chromosomes and DNA molecules in the microspore, vegetative and generative cells of an angiosperm plant (expressed by the formula).

1) Microspores are formed as a result of meiosis.
2) Vegetative and generative cells are formed as a result of mitosis.
3) In all these cells, the haploid set of chromosomes and DNA is nc

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