Chapter 11 Michael DeLouker

Cell Cycle

The cell cycle is a cycle which explains the different parts of duplicating DNA. In the cycle there are three major parts.

Interphase

A phase when a cell replicates its DNA. It contains 3 phases inside of it, G1 which is involved with cell growth, S which doubles DNA, then G2 which is a checkpoint that helps with cell division.

Prophrase

Prophase is the first stage of mitosis. It is when two of the centrioles split, the chromosomes further condense and when the nuclear envelope is broken.

Metaphase

One of the three final stages of mitosis, it is midway when the chromosomes split between spindle poles.

Anaphrase

It is the second final step of mitosis. It is when the two sister chromosomes split and move to separate directions, to spindle poles.

Telophase

The third and final step of mitosis, the two sister chromosomes arrive at the spindle poles and make nuclei.

Telomeres

These are repeating codes at the end of eukaryotic chromosomes.

Cancer

These are mutations in checkpoint genes that make normal cells into dangerous ones that can cause bleeding and affect others.

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