Question

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?

Answer 1

Cells are placed within the pollen grains

Explanation:

• A pollen grain is partly a developed microspore representing  the male gametophyte. It isolates by inconsistent mitotic division and structures two cells. In this manner, each develops dust grain in angiosperms has a generative cell and a vegetative cell. pollen grains are shed at a 2- celled stage in about 60% of angiosperms.
• Be that as it may, in about 40% blossoming plants, the generative cell may additionally partition mitotically to offer ascent to two male gametes and dust grains are shed at this 3-celled arrange.