Question

The pollen grain is
(a) an immature male gametophyte
(b) a mature male gametophyte
(c) partially developed male gametophyte
(d) last stage of male gametophyte

Answer 1

Answer is option "a & c"

Explanation:

• Pollen grain is an immature male gametophyte as it has two cells out of which one develops into two male gametes after pollination. The generative cell of pollen undergoes mitosis to form two male gametes. So, pollen is a immature or partially developed male gametophyte.
• pollen grain is partially developed male gametophyte in light of the fact that the lay improvement finishes on disgrace when pollen grains begin to develop and deliver pollentube having two male cores.
• Hence, the right answer is option a & c "an immature male gametophyte and partially developed male gametophyte".