
Concepts of Genetics 11th Edition by William Klug,Michael Cummings,Charlotte Spencer,Michael Palladino
Edition 11ISBN: 9781292139456
Concepts of Genetics 11th Edition by William Klug,Michael Cummings,Charlotte Spencer,Michael Palladino
Edition 11ISBN: 9781292139456 Exercise 32
The following table (data adapted from Khodursky et al., 2000) presents the percentage of DNA synthesis after 15 minutes from initiation for four strains of Escherichia coli grown under permissive (30°C) and restrictive (42°C) temperatures and various concentrations of the gyrase inhibitor novobiocin. The strains have the following characteristics and genotypes: wild type, temperature-sensitive gyrase mutation ( gyr ts ), novobiocin resistant ( gyr r ), and the double mutant ( gyr ts , r ). Based on data contained in the table, assign the appropriate genotypes to the strains labeled A, B, C, and D.


Explanation
Each of the E.coli strains has its own c...
Concepts of Genetics 11th Edition by William Klug,Michael Cummings,Charlotte Spencer,Michael Palladino
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