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.

repressor control.
repressor control.

operon control.
operon control.

negative control.

Answer 1

The type of regulation described in the context of the mal operon in E. coli, where maltose is needed to turn on the genes, is called **positive control**. In this mechanism, a regulator (such as a protein) activates the transcription of the operon in the presence of a specific molecule (maltose, in this case).