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    Beckers World of the Cell Study Set 1
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    Exam 20: The Regulation of Gene Expression
  5. Question
    A LacO<sup>c</sup> Mutant Would
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A LacOc Mutant Would

Question 19

Question 19

Multiple Choice

A lacOc mutant would


A) never express lac structural genes.
B) constitutively express the lac structural genes.
C) not bind to lacI.
D) use glucose before using lactose as a carbon and energy source.
E) not bind to lacI and never express lac structural genes.

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