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.
Microsporogenesis
(i) It is meiotic formation of haploid microspores from diploid microspore mother cell.
(ii) The arrangement of microspores in a tetrad is generally tetrahedral.
(iii) All the four microspores of a spore tetrad are functional.
Megasporogenesis
(i) It is meiotic formation of haploid megaspores from diploid megaspore mother cell.
(ii) The arrangement of megaspores in a tetrad is commonly linear.
(iii) Only one megaspore of a spore tetrad is functional.
During microsporogenesis and megasporogenesis meiotic cell division occurs which results in haploid gametes - the microspores or pollen grains and megaspores.