explain the process of mitosis and well labelled diagram?
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it is the process of conversion of one chromosome into 2 ok
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Mitosis is an equational division in which a parent cell divides into two indectical daughter cells, each of them has same number and kind of chromosome as are present in parent cell.
Mitosis occurs in two steps :-
1. KARYOKINESIS :- It is the division of nucleus.
It is divided into four steps :-
- i) Prophase - It is the longest phase. In this chromatin fibres condense to form chromosomes. Centrioles reach the poles and form spindle fibres. Nucleolus and nuclear membrane disappears.
- ii) Metaphase - Chromosomes are attached to spindle fibres that arises from each pole and lie at equator forming metaphasic plate.
- iii) Anaphase - It is the shortest phase. In this phase centromere of each chromosome divides to form two daughter chromosomes.
- iv) Telophase - Nucleus and all other cell organelle lease reappear forming to daughter nuclei.
CYTOKINESIS :- it is referred to as the division of cytoplasm . In animals it occurs as cell furrow formation and plant it occurs by cell plate formation.
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