What does the lacZ gene encode?
APermease enzyme
BBeta-galactosidase
CTransacetylase
DRepressor protein
Answer & Solution
Correct answer: B. Beta-galactosidase
lacZ encodes beta-galactosidase, which splits lactose into glucose and galactose.
Related questions
Besides allolactose, which artificial inducer binds the lac repressor?At which level does the lac operon control gene expression?The lac repressor is an allosteric protein. What does this mean?Which was the first genetic regulatory mechanism to be understood clearly?The lac repressor is made of how many identical subunits?Sequential use of glucose then lactose in two growth phases is called what?How does the cAMP level relate to glucose availability?Lac genes are co-transcribed into which kind of mRNA?