Which one of the following is surrounded by a Callose wall?
Microspore mother cell
Male gamete
Egg
Pollen grain
The wall of the pollen mother cell (microspore mother cell ) is deposited by callose ( β-1,3-glucan ).
Arrange the following terms in the correct developmental sequence
Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes.
Pollen grains are male gametes.