Question

Name the nuclei taking part in triple fusion.

Answer 1

Explanation:

Nuclei taking part in the triple fusion is the one of the two mail generative nucleus that enters the megasporangium and the two female polar nuclei.

Triple fusion is the fusion of two female polar nuclei and one male nuclei to result in a 3n cell. Triple fusion is a characteristic feature of angiosperms and give rise to Endosperm that provides nourishment to the growin embryo.

Answer 2

Triple fusion is defined as the phenomenon of fusion of the two polar nuclei with the secondary male gamete to form the triploid nucleus called the "primary Endospermic Nucleus or PEN".

Explanation:

• Triple fusion is essential to produce the PEN which in turn forms the Endosperm of the seed.

• In case of monocotyledonous plants, this Endosperm persists in the seed but in dicotyledonous seeds, this is consumed by the cotyledons.

• Triple fusion is thought to be chemotactically driven, by secretion of the calcium ions.