Question

Based on the cell distribution table, which cell or group of cells contributes a haploid gamete nucleus during double fertilization?

Options

• The synergids

• The antipodal cells

• The polar nuclei

• The egg cell

Answer 1

During double fertilization in angiosperms, the egg cell contributes the haploid female gamete nucleus that fuses with one male gamete nucleus to form the diploid (2n) zygote. The polar nuclei, on the other hand, fuse with another male gamete nucleus in triple fusion to form the triploid endosperm.