In E. coli cells, maltose, a type of sugar, is needed to turn on the genes that are regulated by the mal operon. This type of regulation is called(1 point)

Question

In E. coli cells, maltose, a type of sugar, is needed to turn on the genes that are regulated by the mal operon. This type of regulation is called(1 point)
Responses

positive control.
positive control.

operon control.
operon control.

repressor control.
repressor control.

negative control.

GPT-4o mini · Answer

The regulation of the mal operon in E. coli by maltose is called **positive control**. In this system, the presence of maltose activates the transcription of genes in the operon, enhancing the expression of those genes.