In angiosperms,microsporogenesis and megasporogenesis:

Which is the most logical sequence with reference to the life cycle of angiosperms?

Indicate the stages where meiosis and mitosis occur $(1, 2$ or $3)$ in the flow chart: Megaspore mother cell $\xrightarrow{1}$ Megaspores $\xrightarrow{2}$ Embryo sac $\xrightarrow{3}$ Egg.

Which of the following statements is incorrect?

Select the incorrect statement from the following.

Pollen grains can be stored for a long period in $......$ at $......$ $^oC$.