What chromosome set is typical for vegetative, generative cells and sperm of pollen from a flowering plant? Explain from what source cells and as a result of what division these cells are formed.
1) a set of chromosomes of the vegetative and generative cells – n;
2) the vegetative and generative pollen cells are formed by mitosis during germination of the haploid spore;
3) chromosome set of sperm – n;
4) sperm are formed from the generative cell by mitosis.
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