In anther culture,the androgenic haploid plants are obtained from

Select the correct option in which the following terms are arranged in the correct developmental sequence:
$(A)$ Pollen grain
$(B)$ Pollen mother cell
$(C)$ Microspore tetrad
$(D)$ Male gametes
$(E)$ Sporogenous tissue

Which of the following is not a character of a typical anther?

The function of the innermost layer of the pollen sac,the tapetum,is:

The whorl that produces male gametes is:

Choose the correct option for $PMC$. (in $n$)