Amitoza

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Amitosis (direct division of the nucleus by the narrowing and the formation of two parts containing the unequal random distribution of chromatin). In this division the DNA strands are not replicated, the chromosomes are invisible, the spindle is not formed, and the cytoplasm is not divisible, leading to the formation of a nuclear cell.

The term "amitosis" is also used to describe the division of a prokaryotic cell.

This division is predominantly a symptom of aging and degeneration (cells undergo self-destructive programming), is observed in cells that have lost the ability to mitotic divisions. Nonpathologically, this division occurs in Cronate macronucleus, flower flower endemics, and in animals in liver, myocardium, pineal gland and certain nerve cells.

Because there is no guarantee in the amitotomy that each chromosome will carry a daughter cell, the macronucleus ciliates have a multiplicity of copies of the chromosome suit (polyploid), thus minimizing the likelihood of chromosomal loss during division. Bibliography

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