Chemical reactions that release energy
a. will not occur
b. need catalysts to occur
c. will always explode
d. often occuer spontaneously

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 field of science did harry hess study?

To be or not to be that is da question