Which one of the following statements is correct?
Endothecium produces the microspores.
Tapetum nourishes the developing pollen.
Hard outer layer of pollen is called intine.
Sporogenous tissue is haploid.
The anther wall consists of four wall layers where
Identify $A$ to $E$ in the following diagram
Tapetum is a part of
How many meiotic divisions are necessary to produce $100$ pollen grains
Which one of the following is resistant to enzyme action?