The cell of the sporogenous tissue undergo meiotic division to form microspore tetrads what would be the ploidy of the cells of sporogenous tissue
$n$
$2n$
$3n$
All of the above
Assertion : If pollen mother cells has $42$ chromosomes, the pollen has only $21$ chromosomes.
Reason : Pollens are formed after meiosis in pollen mother cell.
At the time of pollination, how many cells are formed in the pollen grains
Draw the diagram of a microsporangium and label its wall layers. Write briefly about the wall layers ?
Generally in the wall of the anther lobes how many middle layers are formed