How do both plants and animals fight pathogens

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.

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.