Which of the following occurs in E. coli when lactose is absent from its environment?
A) Large amounts of b-galactosidase, lactose permease, and galactoside transacetylase are made.
B) Trace amounts of b-galactosidase, lactose permease, and galactoside transacetylase are made.
C) No b-galactosidase, lactose permease, and galactoside transacetylase is made.
D) The lac operon is induced.
E) Polycistronic mRNA levels would be very high.
Correct Answer:
Verified
Q3: Which of the following are points of
Q4: Which of the following statements is TRUE
Q5: Why is the operon arrangement of genes
Q6: Once the lac repressor binds to the
Q7: Which of the following occurs when allolactose
Q9: strain of bacteria containing F? factor genes
Q10: Jacob, Monod, and Pardee constructed a mutant
Q11: The lac operator site within the lac
Q12: Where is the response element found in
Q13: Which of the following protein(s) does NOT
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