Question

In angiosperms, pollen grains are
a) diploid , and are made when haploid gametes join in fertilization
b) diploid, and are made when haploid gametophytes in join pollination
c) haploid, and are made when haploid spores undergo mitosis
d) haploid, and are made when haploid ovules undergo meiosis

Answer 1

The pollen grain of angiosperm is generally made of only 2 haploid cells:

The tube cell, responsible for the elongation of the pollen tube,
The generative cell that will give 2 male gametes or sperm cells.