BIOA01H3 Chapter Notes - Chapter 8: Sister Chromatids, Ploidy, Nucleoid

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12 Jun 2016
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8. 1 the cell cycle of growth and division. Cell cycles are strictly regulated: cells divide too fast, daughter cell can end up with less cytoplasm and dna, cells divide too slow, daughter cell can end up with an extra chromosome, or be inefficiently large. 8. 2a replication occupies most of the cell cycle in rapidly dividing prokaryotes. Binary fission: the entire cell division mechanism in prokaryotes. Can be described in three periods: b) growth that leads to initiating dna synthesis, c) chromosomes are replicated and moved to opposite ends of the cell, d) membrane pinches together between them and two daughter cells are formed. All genetic material in prokaryotes are packaged into one single circular chromosome, found in a compact area called a nucleoid. If nutrients in abundant than the cell cycle occurs rapidly along with growth. 8. 2b replicated chromosome are distributed actively to the hales of the prokaryotic cell.

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