Question

the orgin of male gaametes in a pollen grain is form​

Answer 1

Explanation:

Mature pollen grains contain two cells: a generative cell and a pollen tube cell. ... Upon germination, the tube cell forms the pollen tube through which the generative cell migrates to enter the ovary. During its transit inside the pollen tube, the generative cell divides to form two male gametes (sperm cells).