NEET BIOLOGY

Detailed explanation-1: -In flowering plants, two male gametes from a single pollen grain fuse with two female gametes, the egg and central cells, to form the embryo and endosperm, respectively.

Detailed explanation-2: -The male gametophyte (pollen grain) produces two male gametes called the sperm cells.

Detailed explanation-3: -Pollen grain is male gametophyte containing generative cell which divides mitotically to give rise to two male gametes.

Detailed explanation-4: -The pollen tube consists of two male gametes. One male gamete fertilizes an egg cell positioned between the egg apparatus. It results in the formation of a diploid oospore/zygote, which matures into an embryo.

Detailed explanation-5: -Single meiosis produces four pollen grains. Two male gametes are produced by each pollen grain. As a result, meiosis produces eight male gametes in total.