Bio 235 - Ch 16 Study Guide Rated A+

Is lac mRNA synthesized when both glucose and lactose are present? {Ans: NO}CRP = ? {Ans: CAP (Catabolite Activator Protein)}Repression of the lac gene expression {Ans: In the absence of lactose, repressor binds to the operator and prevents transcription}What are the 2 components of lactose? {Ans: Glucose and galactose}What is the constitutive mutant of the lacI gene? {Ans: lacI-}What kind of protein is involved in positive control? {Ans: ACTIVATOR}