Differentiate between microsporogenesis and megasporogenesis. Which type of cell division occurs during these events? Name the structure formed at the end of these two events.
Differentiate between microsporogenesis and megasporogenesis. Which type of cell division occurs during these events? Name the structure formed at the end of these two events.
In both the processes, type of cell division is meiosis.
S.NMicrosporogenesisMegasporogenesis1.It is the process of formation ofIt is process of formation ofhaploid microspores(pollen grainshaploid megaspores from diploidfrom diploid pollen mother cell throughmegaspore mother cell through thethe meiosis.meiosis.2.The mother cell first forms a tetradThe mother cell forms four cells.(four cells), which dissociate from eachOut of the tetrad, one megaspore isother to form four pollen grains.functional and develops into embryosac,while other three degenerate.3.The structure formed at the end ofThe structure formed at the end ofmicrosporogenesis is pollen grainmegasporogenesis is embryo sac(male gametophyte).(female~gametophyte).
In both the processes, type of cell division is meiosis.
S.NMicrosporogenesisMegasporogenesis1.It is the process of formation ofIt is process of formation ofhaploid microspores(pollen grainshaploid megaspores from diploidfrom diploid pollen mother cell throughmegaspore mother cell through thethe meiosis.meiosis.2.The mother cell first forms a tetradThe mother cell forms four cells.(four cells), which dissociate from eachOut of the tetrad, one megaspore isother to form four pollen grains.functional and develops into embryosac,while other three degenerate.3.The structure formed at the end ofThe structure formed at the end ofmicrosporogenesis is pollen grainmegasporogenesis is embryo sac(male gametophyte).(female~gametophyte).
