Which of the following describes the trpR gene?Group of answer choicesIt is a gene in the trp operon, and it activates the expression of the trp operon.It produces a protein that binds to the trp operon and represses the expression of the trp operonIt is a gene in the trp operon and it represses the trp operon.It produces a protein that binds to the trp operon and activates the expression of the trp operon

The trp repressor proteinGroup of answer choicesShares the same promoter as the structural genesBinds non-specifically to the trp operatorHas an allosteric binding site for tryptophan (the co-repressor)Is the product of an inducible geneIs active in its native conformation

What is the relationship between a gene and an operon?Group of answer choicesAn operon is a group of bacterial genes that share a common promoterAn operon is a bacterial gene that must have activation and repressionEvery bacterial gene is part of an operonAn operon is any bacterial gene

9 The trp operon is regulated by a(n)activator and inducerrepressor and inducerC) activator and co-repressord) repressor and co-repressor

What is the expression of the trp operon in the presence of tryptophan?Group of answer choicesThe trpR protein binds so the trp operon is expressedThe trpR protein does not bind, so the trp operon is expressed.The trpR protein binds so the trp operon is not expressedThe trpR protein does not bind, so there is no expression from the trp operon

/ A group of structural genes with a single promoter, operator and terminator, is called A. 'n Regulon / A regulon B. 'n Operon / An operon C. 'n Repressor / A repressor D. 'n Induseerder / An inducerReset Selection