an organism always produces offspring that are identical to the parent when self-fertilized. this organism must be

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 volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

In what for do plants utilize nitrogen? why do they need nitrogen?