Draw and/or discuss how the Lactose OPERON in bacteria. Include conditions such as no glucose, glucose...

Draw and/or discuss how the Lactose OPERON in bacteria. Include conditions such as no glucose, glucose and low lactose, lactose high and glucose low

Expert Solution

gladiator answered 2 years ago

How might the presence/absence of lactose affect the lac operon expression in the context of glucose-mediated...

How might the presence/absence of lactose affect the lac operon expression in the context of glucose-mediated catabolite repression?

How is the control gene of the Arabinose Operon different from the Lactose Operon?

How is the operon activated in E.coli that grow on lactose?

3. Explain what happens to the Lac operon when lactose is present and glucose is also...

3. Explain what happens to the Lac operon when lactose is present and glucose is also present. Then explain what happens when lactose is present but glucose is absent. In your answer, include all of the components of the Lac operon and the molecules involved in its regulation. What is the protein product of the Lac operon? Explain why this mechanism of control is adaptive.

Thinking of lactose operon regulation, what happens when E. coli is grown in medium with glucose...

Thinking of lactose operon regulation, what happens when E. coli is grown in medium with glucose and lactose? Group of answer choices neither Cap/cAMP activator nor LacI repressor are bound to a regulatory DNA sequence. LacI repressor is bound to the OPERATOR sequence but Cap/cAMPactivator is not. Cap/cAMP activator is bound to the CAP motif but LacI repressor is not. both Cap/cAMP activator and LacI repressor are bound to the OPERATOR sequence.

Growth condition 1: +glucose & +lactose Growth condition 2: +glucose & -lactose Growth condition 3: -glucose...

Growth condition 1: +glucose & +lactose Growth condition 2: +glucose & -lactose Growth condition 3: -glucose & +lactose In which of the above conditions would you see a change in lac operon expression if you mutate the cAMP receptor protein in E. coli so that it no longer can bind to cAMP? In which direction would the change occur? Group of answer choices Condition 1; Increase. Condition 2; Increase. Condition 1; Decrease. Condition 3; Decrease.

Compare and contrast the effect of a deletion in the operator of the lactose operon with...

Compare and contrast the effect of a deletion in the operator of the lactose operon with one in the operator of the tryptophan operon?

A)How is the lac operon regulated if the bacteria is put into an environment where there...

A)How is the lac operon regulated if the bacteria is put into an environment where there is excess amount of lactose and glucose at the same time. (10 pts) B)From the previous question, how would the outcome change if the glucose and lactose amounts are very low? (10 pts) C)Where would the lac repressor be bound in E. Coli bacteria that is growing in low glucose and high lactose? (7pts)

How is the lac operon regulated if the bacteria is put into an environment where there...

How is the lac operon regulated if the bacteria is put into an environment where there is excess amount of lactose and glucose at the same time. (10 pts) 7) From the previous question, how would the outcome change if the glucose and lactose amounts are very low? (10 pts)

6) How is the lac operon regulated if the bacteria is put into an environment where...

6) How is the lac operon regulated if the bacteria is put into an environment where there is excess amount of lactose and glucose at the same time. (10 pts)

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