Zoology - N20107 - The Life of a Cell 1. Interphase a. G1...

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The Life of a Cell 1. Interphase a. G1 Phase – cell growth b. S Phase – genetic material replicates c. G2 Phase 2. Mitosis a. Prophase b. Prometaphase c. Metaphase d. Anaphase e. Telophase 3. Cytokinesis –the actual division of the cell, not really part of Mitosis 4. Apoptosis – the death of the cell Cell has 3 stop points, sort of like check points that cell decides whether to go on or  not What is being passed from parents to their offspring? What is this DNA? Polymer A-T  G-C sugar phosphate backbone double helix The heritable portion of our chromosomes All cells other than a sperm and an egg have 46 chromosomes Chromatin consists of histones and scaffold proteins Chromosomes are so wound tight, for a reason. They are neatly bundled  because they have to be transported Mitosis The process of nuclear division that occurs in somatic (body) cells
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Results in the maintenance of chromosomal number (i.e. 2n parent cell produces 2n  daughter cells) Terminology Diploid  – a cell with two copies of each chromosome; the diploid number for a cell would 
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This note was uploaded on 04/22/2008 for the course ZOO 1114 taught by Professor Melodybrooks during the Spring '08 term at The University of Oklahoma.

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Zoology - N20107 - The Life of a Cell 1. Interphase a. G1...

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