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Which of the Following Statements Is True About a Lac

Question 12

Multiple Choice

Which of the following statements is true about a lac operon with this genotype? I-d O+ Z+ Y- A-


A) The operon is repressible.
B) The operon is nonrepressible.
C) The mutation is cis-dominant.
D) The operon is uninducible.
E) None of the choices is correct.

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