Q.

When lacUV5 control system is used, addition of IPTG                the expression of

A. activates, t7 rna polymerase
B. inactivates, t7 rna polymerase
C. activates, t7 dna polymerase
D. inactivates, t7 dna polymerase
Answer» A. activates, t7 rna polymerase
Explanation: when a lacuv5 control system is used, the addition of iptg activates the expression of t7 rna polymerase. thus transcription of sequences under the control of t7 promoter is controlled.
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