In: Biology
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)
7) From the previous question, how would the outcome
change if the glucose and lactose amounts are very low? (10
pts)
Answer - 6
when bacteria put in to the an environment where the access amount of glucose and lactose are present at the same time than Beeta galectosidase synthesis is very low level because in presence of glucose bacteria cell use glucose as a source of carbon. Because glucose is the primary source of cabon. Hence in the presence of glucose and lactose both glucose is utilize and transcription of lac z gene is very low.
Answer - 7
If the bacteria put in to the environment where there is lactose and glucose amount are very low then no transcription of lac gene .
Explanation of this condition is given blow__