A pollen grain in angiosperm at the time of dehiscence from an anther could be 2-celled or 3-celled. Explain. How are the cells placed within the pollen grain when shed at a 2-celled stage?
In the majority of angiosperms, pollens are released in a 2-celled stage. However, in other species, the generative cell divides into two male gametes and forms a 3-celled stage. When the pollen grain is shed at the 2-celled stage, it has two unequal cells, a bigger vegetative cell and a smaller generative cell.
