The LacZ Gene Is Sometimes Included in a Cloning Vector

question 12

Multiple Choice

The lacZ gene is sometimes included in a cloning vector.What does it encode?

• A) a restriction enzyme that cuts the vector while it is in transformed cells
• B) a blue pigment that identifies any cell that has beentransformed
• C) an enzyme that converts RNA to DNA
• D) an enzyme that confers antibiotic resistance
• E) a detectable enzyme that is not produced if the gene is interrupted by an insert

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Impasse

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Intensifies

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