HMH Chapter 5: Mitosis

Gap 1 (G1):   cell growth and normal functions

DNA synthesis (S): copies DNA

Gap 2 (G2): additional growth

Mitosis (M): includes  division of the cell nucleus (mitosis) and division of the cell cytoplasm (cytokinesis)

It is a nerve cell

the cell is large enough

The surface area to volume ratio is small enough

DNA undamaged

Is the same with the need of those types of cells

Varies depending on the organism

Is is highest for nerve cells

Is higher for skin cells than for liver cells.

Be large enough to allow for adequate exchange of materials

Must be small enough for genetic material to be conserved

Must be unique

Must be separate from cell growth.

Supercoiled DNA

Chromatin

Spool-like proteins

DNA double helix

Held together by a telomere

Centromeres protecting DNA

Two sister chromosomes

Half of a duplicated chromosome