Male gametophyte in angiosperms produces
single sperm and two vegetative cells
three sperms
two sperms and a vegetative cell
single sperm and a vegetative cell.
Which one of the following is resistant to enzyme action?
Where does pollen tube developes ?
After penetrating stigmatic and styler tissues, the pollen tube usually grow down towards the egg because
Exine of pollen grains is composed of