There are 34 chromosomes in the apple tree karyotype. How many chromosomes and DNA will be contained in the ovum of an apple tree, the endosperm cells of its seed and leaf cells? What cells do these cells form from?
1) there will be 17 chromosomes and 17 DNA molecules in an egg cell formed from macrospores;
2) in the endosperm cells formed during the fertilization of the central cell in the embryo sac, 51 chromosomes and 51 DNA molecules% will be contained
3) Each leaf cell formed from embryonic cells will have 34 chromosomes and 34 DNA molecules
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