A linear tetrad of $4$ cells lying in an axial row is formed during the development of
Embryo sac
Pollen grains
Ovary
Ovule
Explain about Embryo sac.
Egg apparatus of angiosperms consist of
In majority 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