Question

when E.coli is kept in a medium rich in glucose Z,Y and a genes were not express why​

Answer 1

Answer:

In prokaryotes, DNA-binding proteins regulate genes by controlling transcription. An operon is a group of genes that are regulated together. An example is the lac operon in the bacterium E. coli: This group of three genes must be turned on together before the bacterium can use lactose ► as food