A mutation in the lacI gene results in an active repressor protein that can no longer bind allolactose.Which would be true of the phenotype of the mutant strain?
A) It would be constitutive for β-galactosidase expression.
B) It would overexpress LacZ.
C) It would be the same as the wild-type strain.
D) It would repress β-galactosidase when lactose is present.
E) It would be overexpress β-galactosidase when lactose is present.
Correct Answer:
Verified
Q1: Expression of genes that are constitutive is:
A)regulated
Q5: The expression of genes required for biofilm
Q7: What would characterize the phenotype of a
Q8: Which of these is required for transcription
Q9: When does repression of the lac operon
Q12: Mutants that constitutively expressed β-galactosidase were placed
Q13: Which of these controls the expression of
Q41: Which component of the two-component regulatory system
Q43: How is chemotaxis regulated?
A)By increased gene expression.
B)By
Q45: What would characterize the phenotype of a
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents