Which of the following is active in the absence of lactose? Options: A . &nbsplacI B . &nbsplacZ C . &nbsplacY D . &nbsplacA

Which of the following is active in the absence of lactose?

Question

Which of the following is active in the absence of lactose?

Options:

A . lacI

B . lacZ

C . lacY

D . lacA

Answer: Option A

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Question 1. What is the name of the stretch of DNA where RNA polymerase binds?....

Question 2. Which sentence is TRUE about structural genes in the absence of lactose?....

Question 3. How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform....nerve cells even though the look and perform completely different?

Question 4. The lac Z gene codes for:....

Question 5. RNA is synthesized on a DNA template in a process called ______, which utilizes the enzyme _______....

Question 6. Once transcription has been completed, which of the following is NOT necessary for protein synthesis to occur?....

Question 7. What are the structural genes of lac operon?....

Question 8. What is the inducer for lac operon?....

Question 9. For a repressible operon to be transcribed, which of the following must be true?....

Question 10. All these condition causes ara operon to turn on EXCEPT....

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