Which question would be asked in a dichotomous key?

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.

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

What gases are carried by the blood