What is the function of the lac operon

Reference no: EM13158270

1. Describe the regulation of the trp operon (a) in the presence of tryptophan and (b) the absence of tryptophan. Name all components involved and tell where they bind.

2. What is the function of the lac operon?

3. Describe how the lac operon is regulated by both lactose levels and glucose levels. Name all components involved and tell where they bind.

4. Prokarytoes have only one chromosome. Explain why a mutation thus has a more significant effect.

5. An operon with one regulatory region and three protein-coding genes will have how many promoters? Related: Explain how bacteria can make one mRNA molecule that contains the code for several proteins.

6. An operon has four protein-coding genes (for proteins A, B, C, D). Which proteins will be produced (a) if the promoter ahead of gene A is mutated? (b) if the stop codon of gene B is deleted; (c) if a repressor binds to the operator (regulatory DNA) for this operon.

Reference no: EM13158270

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