Which of the following environmental conditions would be MOST likely to result in transcription of the lac

Biology

1 answer:

Kruka [31]3 years ago

4 0

Answer:

The correct answer is B high levels of lactose and high levels of cyclic AMP.

Explanation:

Lac operon contain 3 regulatory genes and 3 structural genes.In presence of lactose the repressor molecule that is encoded by Lac I gene cannot bound to the operator region.

Bacause the lactose interact with the repressor and change its conformation so that it cannot repress the expression of the structural genes of lac operon.

On the other hand cyclic AMP is a positive regulator of lac operon .The interaction of cyclic AMP with the promoter region of lac operon stimulates the binding of RNA polymerase in the promoter region to boost the expression of structural genes of lac operon such as Lac Z,Lac Y and Lac A.

You might be interested in

Never mind wrong print

Diano4ka-milaya [45]

Okay thats cool. okay

7 0

3 years ago

Choose all answers that apply

Nutka1998 [239]

Answer:

is made of a double layer of phospholipids

3 0

3 years ago

What is natural selection?

Deffense [45]

Answer:

those best suited to demands of environment survive

5 0

3 years ago

A new pesticide is sprayed on a cornfield. As a result, the corn crop will most likely?

AlexFokin [52]

GMOs have been changing the way that pesticides are used in agriculture. Herbicide-tolerant genetically modified (GM) crops have led to an increase in herbicide usage while insecticide-producing GM crops have led to a decrease in insecticides.

4 0

3 years ago

Read 2 more answers

Normal text

AnnyKZ [126]

RWxRR= RR, RR, WR, WR so two dominant reds and two pinks

5 0

2 years ago