Question

After double fertilisation, the new products in the mature ovule are:

• A. 1 diploid cell and 1 haploid cell
• B. 1 diploid cell and 1 triploid cell
• C. 2 diploid cells and 1 haploid cell
• D. 2 diploid cells and 1 triploid cell

Answer 1

The correct option is B 1 diploid cell and 1 triploid cell

During double fertilisation, one of the male gametes released by the pollen tube fuses with the egg cell to form a diploid zygote while the other male gamete fuses with the two polar nuclei in the central cell to form a triploid primary endosperm nucleus (PEN). Hence, a diploid zygote and a triploid PEN are formed as a result of syngamy and triple fusion respectively, in the process of double fertilisation.