Cell Division and Mitosis
Two things are needed for cell division: duplication and cytokinesis.
The very precise duplication of
genetic material.
The more imprecise separation of the cytoplasm, known as cytokinesis.
The duplication of genetic material has three key components.
Genetic material within the nucleus is replicated.
The genetic material is packaged and separated into two new nuclei.
Each daughter cell gains exactly one copy of the genetic material.
Mitosis is the process of distributing exact copies of
genetic information.
It has six sub phases: interphase, prophase, prometaphase, metaphase, anaphase, and
telophase.
In interphase the nucleus replicates its DNA and centrosomes.
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In prometaphase, the nuclear envelope breaks down,
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During metaphase, chromosomes line up in a plane within the cell
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In anaphase, the daughter chromatids are separated.
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In Telophase, the chromatids reach the poles and the spindle begins to
break down.
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