Question

Name the nuclei that participate in triple fusion.

Answer 1

Triple fusion is the fusion of male gamete with the polar nuclei inside the embryo sac of the angiosperm. This process takes place inside the embryo sac.

When the pollen grains falls on the stigma. They germinate and give rise to the pollen tube that passes through the style and enters into the ovule.

After this, the pollen tube enters one of the synergids and release two male gametes there. Out of the two male gametes, one gamete fuses with the nucleus of the egg cell and forms the zygote (syngamy). The other male gamete fuses with the two polar nuclei present in the central cell to form a triploid primary endosperm nucleus.

So, this process involves the fusion of three haploid nuclei.