The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of

Options

A. Insertational inactivation of alpha -galactosidase in non -recombinant bacterial
B. Insertational inactivation of alpha-galactosidase in recombinant baceteria
C. Inactivation of glycosidase enzyme in recombinant bacteria
D. Non-recombinant bacteria containing betagalactosidase

Answer

D