BOTANY

Detailed explanation-1: -Double fertilization is the characteristic of angiosperms. In this process, one male gamete fuses with the egg to form a zygote, which is known as syngamy. The other male gamete fuses with the two polar nuclei in the central cell to produce a triploid primary endosperm nucleus or PEN.

Detailed explanation-2: -In angiosperms, double fertilization results in the production of an embryo and endosperm, both of which are critical for the development of viable seed. Diploid plants produce diploid embryos and triploid endosperm tissue. The endosperm contains two genomes of the maternal parent and one genome of the paternal parent.

Detailed explanation-3: -double fertilization, in flowering plant reproduction, the fusion of the egg and sperm and the simultaneous fusion of a second sperm and two polar nuclei that ultimately results in the formation of the endosperm (the food-storage tissue) of the seed.

Detailed explanation-4: -Double fertilization Endosperm is formed when the two sperm nuclei inside a pollen grain reach the interior of a female gametophyte (sometimes called the embryo sac).

Detailed explanation-5: -Introduction of Double Fertilization in Angiosperms. The process of double fertilization kickstarts seed formation in flowering plants (angiosperms) by fusing two male gametes (sperm cells) with two female gametes (egg and central cell) to generate the precursor cells for the embryo and endosperm, respectively.