question_answer 48)

  Which are the three cells found in a pollen grain when it is shed at the three celled stage?

Answer:

                  In over 60% of angiosperms, pollen grains are shed at the two cell further stage (vegetativecell and generative cell), In the remaining species, the generative cell divides mitotically togive rise to the two male gametes before pollen grains are shed at the (three-celled stage(are vegetative cell and two male gametes).