Question

Mature male gametophyte is

• A. One-celled
• B. Two-celled
• C. One-celled and Two-celled
• D. Three-celled

Answer 1

The correct option is D Three-celled

Mature male gametophyte in angiosperms is a three-celled structure i.e., the 3-celled germinated pollen grain. The terminal poistion is occupied by cytoplasm and nucleus of tube cell and two male gametes remain in back side of tube nucleus. In 40% of angiosperms, pollen is released at the 3-celled stage while in other 60% in the 2-celled immature stage.

So, the correct answer is 'Three celled'.