What are your chances for tossing a head

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 was photo 51 with rosalind franklin?

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?