BS 110 Notes 9-8-2010

BS 110 Notes 9-8-2010 - BS 110 Notes I mpor tance/Summary...

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BS 110 Notes 9/8/2010 Importance/Summary of DNA Replication Occurs in “interphase” of mitosis and before cell division. Cytokinesis – division of the cytoplasm “Ensure” that newly formed daughter cells are genetically similar to parent cell. Replication and mitosis provide genetic continuity from one generation to next one of cells. Skin cells are continually forming that are genetically similar to parent cells that formed new cells. If newly formed cells are different genetically, problems may occur…ex: tumors, cancer, etc. Theory of Gene Action (Theory of Protein Formation) 1. Characteristics determined by genes and proteins (enzymes) formed in cells. Gene – two strands of nucleotides, each composed of a phosphate, sugar, and nitrogen base Protein – biological molecule that is composed of amino acids (a.as.) Enzyme – type of a protein that is a catalyst – controls the speed at which chemical reactions occur within, between, and among cells without itself
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BS 110 Notes 9-8-2010 - BS 110 Notes I mpor tance/Summary...

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