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Question

During development of male gametophyte from pollen mother cell, there

occurs

A
Two meiotic divisions and one mitotic division
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B
Two mitotic divisions
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C
One meiotic and two mitotic division
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D
One meiotic and one mitotic division
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Solution

The correct option is C One meiotic and two mitotic division
  • Pollen grains contain the male gametophyte (microgametophyte) phase of the plant. Pollen grains are produced by meiosis of microspore mother cells that are located along the inner edge of the anther sacs (microsporangia).
  • The outer part of the pollen is the exine, which is composed of a complex polysaccharide, sporopollenin. Inside the pollen are two (or, at most, three) cells that comprise the male gametophyte.
  • The tube cell (also referred to as the tube nucleus) develops into the pollen tube. The germ cell divides by mitosis to produce two sperm cells. Division of the germ cell can occur before or after pollination.
  • During development of male gametophyte from pollen mother cell, there occurs one meiotic and two mitotic division.
Thus, the correct answer is option C.

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