Which of the following structures contains the microsporangia?

$A$ flower has $10$ stamens,each having a bilobed,dithecous anther. If each microsporangium has $5$ pollen mother cells,how many pollen grains would be produced by the flower?

Which of the following statements about pollen grains is incorrect?

Given below is the diagrammatic sketch of a transverse section of a young anther. Identify the parts labelled $A, B, C$ and $D$ and select the right option about them.

Which of the following types of anther is found in the family $Malvaceae$?

Identify the incorrect statement regarding the sporogenous tissue.