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GENERATION TIME This is the time required for a cell to divide and its population to double. This counts the time  beginning when a cell is newly produced by binary fission and ending when that cell itself  divides. Generation time varies due to: 1. Species 2. Conditions Under ideal conditions, most bacteria have a generation time of 1 - 3 hours, although this can  vary, with the shortest being about 15 - 20 minutes and the longest being over 24 ho urs. Each individual species has its own generation time in ideal conditions, but when conditions  are less than ideal, generation time becomes longer.  Numbers increase very rapidly. One cell, after 20 generations, could produce over a million  bacteria. With a generation time of 20 minutes, this could occur in about 7 hours. 30 generations  (10 hours) would bring the population to 1 billion. After that, numbers become so large that 
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This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.

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