Question

select the correct answer from each drop - down menu. the ilv - leu operon of bacillus subtilis comprises seven genes necessary for the biosynthesis of isoleucine, valine, and leucine. the structural genes of this operon are transcribed when these amino acids are deficient in the cell. the vana operon codes enzymes that modify the binding targets of antibiotic vancomycin and therefore give antibiotic resistance to the bacteria. the structural genes of this operon are transcribed when the antibiotic vancomycin is present in the environment. the ilv - leu operon is an inducible a repressible a transcriptional operon, and the vana operon is operon.

Explanation:

The ilv - leu operon is transcribed when amino acids are deficient, which is characteristic of a repressible operon. The VanA operon is induced by the presence of vancomycin to confer antibiotic resistance, making it an inducible operon.

Answer:

The ilv - leu operon is a repressible operon. The VanA operon is an inducible operon.