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The trp operon in e.coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

What are two ways in which waves erode the land?

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria