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Essential Genetics 6th Edition by Daniel Hartl
Edition 6ISBN: 978-1449686482Essential Genetics 6th Edition by Daniel Hartl
Edition 6ISBN: 978-1449686482 Exercise 9
Temperature-sensitive mutations in the lacI gene of E. coli render the repressor nonfunctional (unable to bind the operator) at 42°C but leave it fully functional at 30°C. In such a mutant, would b -galactosidase be expected to be produced:
(a) In the presence of lactose at 30°C?
(b) In the presence of lactose at 42°C?
(c) In the absence of lactose at 30°C?
(d) In the absence of lactose at 42°C?
(a) In the presence of lactose at 30°C?
(b) In the presence of lactose at 42°C?
(c) In the absence of lactose at 30°C?
(d) In the absence of lactose at 42°C?
Explanation
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The E. coli lac I gene has interesting m...
Essential Genetics 6th Edition by Daniel Hartl
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