HORTICULTURE

Detailed explanation-1: -Double fertilization gives rise to an endosperm that provides nourishment to the developing embryo. It increases the viability of the seeds of angiosperms. It utilizes both the male gametes produced by the pollen grains.

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: -Endosperm is formed in angiosperms due to double fertilisation.

Detailed explanation-4: -In seeds of flowering plants, the embryo is surrounded by a nutritive tissue called endosperm. Embryo and endosperm are derived from individual fertilization events (double fertilization) and develop embedded in maternal tissues that form the seed coat.

Detailed explanation-5: -Assertion :In angiosperms, endosperm development precedes embryo development. Reason: Double fertilisation ensures that the nutritive tissue is formed before the zygote starts cleaving so that the energy spent on the formation of endosperm does not get wasted.