What does "lac" refer to in what we call the lac operon?
What does "lac" refer to in what we call the lac operon?
lactose
lactase
lac insect
the number $1,00,000$
Solution
The lactose operon (lac operon) is an operon required for the transport and metabolism of lactose in E. coli and many other enteric bacteria. The gene product of lacZ is $\beta$-galactosidase which cleaves lactose, a disaccharide, into glucose and galactose.