Gametes formed by meiosis are called

The male and female reproductive organs of several pteridophytes and gymnosperms are comparable to floral structures of angiosperms. Make an attempt to compare the various reproductive parts of pteridophytes and gymnosperms with reproductive structures of angiosperms.

Which plant can propagate vegetatively at a phenomenal rate and spread all over the water body in a short period of time?

How many of the following statements are true about angiosperms?
$A$. The generative cell floats in the cytoplasm of the vegetative cell.
$B$. The stalk of the ovule is called the funiculus.
$C$. Pollen grains are shed at the two-celled stage.
$D$. The embryo sac is diploid.
$E$. The megaspore mother cell towards the chalazal end becomes functional.

Explain post-fertilization events. Describe the steps of post-fertilization.

What is the number of chromosomes in a meiocyte of a potato plant?