Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome.
-If she moves the repressor gene (lac I), along with its promoter, to a position at some several thousand base pairs away from its normal position, which will you expect to occur?
A) The repressor will no longer be made.
B) The repressor will no longer bind to the operator.
C) The repressor will no longer bind to the inducer.
D) The lac operon will be expressed continuously.
E) The lac operon will function normally.

Question

Quizplus · Accepted Answer

Moving the repressor gene (lac I) along with its promoter does not inherently disrupt its function or its ability to be expressed, bind to the operator, or interact with the inducer. The lac operon can still be regulated normally because the repressor's action is not dependent on its physical location relative to the operon, as long as it is still being properly expressed.

Suppose an Experimenter Becomes Proficient with a Technique That Allows