BIOL 1020 Lecture Notes - Cell Division, Telomere, Prokaryote
17 Feb 2014
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Monday, october 7th, 2013: prokaryotic cells binary fission, eukaryotic cell cycle, mitosis division of cells, meiosis recombing. Functions of cell division: repairing cell structure, reproduction, development of organism. Genetic info= dna to daughter cells when they divide they must take dna with them. Perfectly even, symmetrical division in prokaryotic cell division (binary fission) Eukaryotic cells dna synthesis dna found in nucleus can"t cut nucleus in half therefore it dissolves and replicates. Dna turns into chromosomes during cell division (specifically mitosis where the pairs are broken up) Greider, blackburn and szostak discovered: chromosomes can be stabilized by extending telomers. With shortened telomeres cells multiple continuously which means that cancer forms. Cytokinesis is complete when there are 2 separate cells. Mitosis identical cells, both cells get what they get equally despite not looking exactly the same. Breaking 1 diploid cell creates 4 cells total.
