Chapter 11 By mike mcmaHon

Cell Cycle: this is basically all the processes and events that the cell goes through during its life. It starts when it is formed and ends when the cytoplasm finally divides. There are a few different complex stages of the cell cycle.

Interphase: this is the stage of the cell cycle that a typical cell spends most of its life in. In this stage, the cell replicates all of its DNA and doubles all of its cytoplasm parts. The 3 stages of interphase is described as G1, S, and G2. G1 is cell growth, S is DNA synthesis, and G2 is the making of proteins that is essential for cell division.

Prophase: another step in the cell cycle. In this, the chromosomes condense and one of the centrosomes that were once paired with another, will go to the opposite side of the cell. Attached to those centrosomes are the sister chromatids. A huge event that happens in this step is the destruction of the nuclear envelope.

Metaphase: In this stage, the chromosomes are aligned together midway between the spindle poles.

Anaphase: This is when the sister chromatids of a cell separate and start to go towards the opposite spindle pole.

Telophase: This is the final stage of mitosis and is when the chromosomes finally arrive at the opposite spindle poles and deconsense. The result of this stage is the formation of two new nuclei.

Telomeres: These are found at the end of eukaryotic chromosomes. They are noncoding DNA sequences that repeat thousands and thousands of times.

Cancer Cells: Cancer is a disease far too complex to describe in one paragraph, but, one very important characteristic of cancer cells is that they contain very high amounts of telomeres in them.

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