Identify the incorrect statement regarding the sporogenous tissue.

Select the incorrect option regarding the tapetum.

Male gametes are produced in

Which of the following statements about sporopollenin is false?

Which is an incorrect statement?
$I$. Each cell of sporogenous tissue in anther is capable of giving rise to a microspore tetrad.
$II$. The pollen grain represents the male gametophyte.
$III$. Pollen grains are usually triangular and $10-15 \mu m$ in diameter.
$IV$. Sporopollenin is one of the most resistant organic materials,which can be destroyed only by strong acids and alkalis.

When a pollen grain is shed at the $3$-celled stage,name the cells it contains.