The lac repressor is made of how many identical subunits?
ATwo
BFour
CSix
DEight
Answer & Solution
Correct answer: B. Four
It is a tetramer, a four-part protein with identical subunits.
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?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?The lacI gene is expressed in what way?