The wild type strain of E. coli express the lac operon at a high level when grown on media containing glucose. True False
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- The question is about the expression of the lac operon in E. coli. - It specifies that the strain is wild type. - It mentions the presence of glucose in the growth media. Show more…
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the repressor protein used by escherichia coli to control the lac operon is coded for by a gene located within the operon is true or false
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The lac operon - TRUE or FALSE: Before the induction of the lac operon, lactose transporters are already present in the cell membrane. FALSE TRUE Lactose initially enters the cell using a transport protein. FALSE TRUE Allolactose binds to the lac repressor protein. FALSE TRUE When induced, the lac repressor detaches from the lac operator site. FALSE TRUE Attachment of the lac repressor causes the DNA, which is normally straight, to form a loop. FALSE TRUE After the lac repressor attaches, RNA polymerase is unable to transcribe the genes of the lac operon. FALSE TRUE
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