The L-arabinose operon is an operon which produces enzymes to break down the monosaccharide sugar ar… Show more The L-arabinose operon is an operon which produces enzymes to break down the monosaccharide sugar arabinose into D-xylulose-5-phosphate. If arabinose is present, it will bind to a protein called AraC to form a complex (called AraC-arabinose). The binding of this complex to an operator is needed for RNA polymerase to bind to the promoter and transcribe the operon. Additionally, a second compound of CAP + cyclic AMP must bind to the DNA to fully initiate transcription of the L-arabinose operon. There is infrequent transcription without this CAP + cyclic AMP compound bound to the DNA. 1) The L-arabinose operon is: Inducible Repressible Reducible Not enough information to determine 2) If arabinose and glucose are present, would you expect the L-arabinose operon to be on with frequent transcription? Yes No Not enough information to determine • Show less