Question

In an Angiosperm the number of microspore mother cells involved in production of 120 male gametes is

• A. 30
• B. 60
• C. 15
• D. 40

Answer 1

Answer: (A)

30

In angiosperms, the microspore mother cells undergo meiosis to produce tetrads of haploid microspores or pollen grains. Each pollen grain contains vegetative cell and a generative cell. The vegetative tube cell produces the pollen tube and the generative cell divides to form two male gametes.

So if 1 microspore mother cell gives rise to 4 male gametes, 30 microspore mother cell gives rise to 120 male gametes.

Thus the correct answer is option A.