How many pollen mother cells are involved in the formation of $8$ pollen tetrads?

The male gametophyte with the least number of cells is found in .....

What is the ploidy of the cells of a microspore tetrad (in $n$)?

Given below are two statements.
Statement $I$: Generally,anthers in angiosperms are dithecous,having two pollen sacs in each lobe.
Statement $II$: Each sporangium produces pollens from sporogenous tissues by the process of sporogenesis.
In light of the above statements,select the correct answer from the options given below.

The generative cell of a two-celled pollen divides in the pollen tube but not in a three-celled pollen. Give reasons.

Which of the following layers does not help in protection and dehiscence of the anther?