Botany - Cell Cycle and Cell Division Question with Solution | TestHub

Female parent genotype $=2\mathrm{N}=2\mathrm{A}$ Male Gamete formed $=\mathrm{N}=\mathrm{A}$ Male parent genotype $=2\mathrm{N}=4\mathrm{A}$ Male Gamete formed $=\mathrm{N}=2\mathrm{A}$ Endosperm is formed by the fusion of 2 polar nuclei (from female gamete) and 1 male gamete. Thus, the ploidy of endosperm $=$ $3\mathrm{N}=\mathrm{A}+\mathrm{A}+2\mathrm{A}=4\mathrm{A}$ (tetraploid)