List the difference between mitosis and meiosis.
Answers
The main differences between mitosis and meiosis are as follows :
Mitosis :-
=> This kind of cell division takes place in the somatic cells.
=> Only two daughter cells are formed in this division.
=> This is necessary for the growth and repair of the cells.
=> Diploid daughter cells are remained.
=> Crossing over doesn't take place here.
Meiosis :-
=> This type of cell division takes place in the gametic cells or gametes.
=> Four daughter cells are formed.
=> Meiosis is required for Sexual reproduction process.
=> Haploid daughter cells are formed.
=> Crossing over takes place in meiosis.
Mitosis -
1. This division takes place in somatic cells and as a result of this division growth occurs.
2. Completed in one stage.
3.Prophase is smaller (as compared to prophase of Meiosis).
4.No crossing over takes place.
5.Synapsis does not take place at metaphase.
6.At metaphase, centromere is towards equatorial plate and ends of chromosomes towards poles. Centromere divides.
7.Chromatids are long and thin.
8.Cytokinesis follows karyokinesis.
MEOSIS -
1.This takes place usually in reproductive cells and as a result of this character one generation pass into the other.
2.Completed in two stages.
3.Prophase longer than prophase of mitosis and divided into five substages.
4.Crossing over takes place in which exchange of segments of chromatids occurs.
5.Synapsis between homologous chromosomes takes place (bivalent stage).
6.At metaphase I, the centromere is towards poles and ends of chromosomes towards equatorial plate. Centromere does not divide.
7.Chromatids are shorter and thick.
8.After Telophase I, cytokinesis does not takes place always (may occur).
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