When lactose is ingested, allolactose serves as a(n) , binding to the repressor and removing it from the operator to allow for transcription to occur. a. operator
b. inducer
c. repressor
d. corepressor
e. operon

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

it would be heredity

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.