Cual de los 3 sistemas del cuerpo humano se ven afectados por el c0vid19​

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.

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

How many bones are there in the human body?