In an young anther the four rows of cells which later produce pollen are called

The process of formation of microspores from a pollen mother cell is called

Even after killing the generative cell with a laser beam, the pollen grain of a flowering plant germinates and produces normal pollen tube because

Describe internal structure of anther by mentioning about typical stamen.

How many meiotic divisions are necessary to produce $100$ pollen grains