In a flowering plant the largest number of haploid cells occur in
Ovule
Microsporangia
Root tip
Cambium
Describe internal structure of anther by mentioning about typical stamen.
The most resistant organic material known which makes up the outermost layer of pollen wall is
Identify $'a'$ in given figure :
Arrange the following terms in the correct developmental sequence: Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes
Examine the figure given below and select the right option giving all the four parts $a, b, c$ and $d.$ Correctly identify
$a\quad \;b\quad\;c\quad\;d$