Question

Differentiate between microsporogenesis and megasporogenesis which type of cell division occurs during these events name the structure formed at the end of the two event

Answer 1

It occurs inside the pollen sac of the anther. (b) Both events (microsporogenesis and megasporogenesis) involve the process of meiosis or reduction division which results in the formation of haploid gametes from the microspore and megaspore mother cells.

Answer 2

Megasporogenesis :-

• The process through which development of megaspores from megaspore mother cell takes place is known as megasporogenesis.

• Out of the four megaspores formed through megasporogenesis, only one remains functional and the other three degenerate.

• The structures formed at the end of megasporogenesis are four megaspores.

Microsporogenesis :-

• The process through which development of microspores from pollen mother cell takes place is known as microsporogenesis.

• Out of the 4 microspores formed through microsporogenesis, all the four microspores remain functional.

• The structure formed at the end of microsporogenesis is known as the "microspore tetrad"

☆ The type of cell division that occurs during megasporogenesis and microsporogenesis is the same. It is meiosis.