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11. The lacZ gene, responsible for lactose metabolism is an inducible gene regulated by a repressor...

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Biology

11. The lacZ gene, responsible for lactose metabolism is aninducible gene regulated by a repressor protein. Answer thefollowing questions regarding how this gene is regulated (3 ptseach) a. What is the default setting in reference to the expressionof lacZ? b. What role does lacI play in regulating the system? c.What happens when the system is exposed to lactose? d. What happensafter the cell digests the lactose supply

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Ans Lac Z is a gene of beta galactosidase regulated by an upstream repressor gene which encodes repressor protein a There are many components in lac operon system as Lac I gene for repressor protein LacP promoer of lac I RNA polymerase binding Lac O operator of lac Z    See Answer
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