A unifying model for the G1 period in prokaryotes and eukaryotes.
A model to explain the cell division cycle in both prokaryotes and eukaryotes is presented. No specific 'G1 functions' take place during the G1 period, which is merely part of a larger period for the preparation of DNA synthesis which began at the previous initiation of DNA synthesis. A G1 period exists merely because the doubling time of the cells is greater than the sum of the S and G2 periods.
Department of Microbiology, The University of Michigan School of Medicine, Ann Arbor, Michigan 48109, USA.
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Cooper
D001419:Bacteria / Q000166:cytology; D002455:Cell Division; D005057:Eukaryotic Cells / Q000166:cytology*; D016193:G1 Phase; D008954:Models, Biological; D011387:Prokaryotic Cells / Q000166:cytology*