List the changes observed in an angiosperm flower subsequent to pollination and fertilisation.

Which one of the following statements is not true?

Differentiate between microsporogenesis and megasporogenesis. Which type of cell division occurs during these events? Name the structures formed at the end of these two events.

Definations / Explanation :

$1.$ Nutritive layer

$2.$ Funicle

Choose correct options

- Autogamy is genetically xenogamy

- Pollination occurs by air in grass

- Placenta is arranged in inner wall of ovary

- It is possible to store pollen grains in liquid nitrogen - $100^oC$

Delete odd one