An operon encodes enzymes for making an essential amino acid and is regulated like the trp operon. which of the statements is true? a. the amino acid inactivates the repressor. b. the amino acid acts as a corepressor. c. inducible enzymes are produced. d. the repressor is active in the absence of the amino acid.

B is correct; the amino acid acts as a corepressor.

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

hope this : )

the organisms are not adapted to live in some communities or habitats.