The colonies of recombinant bacteria appear white
in contrast to blue colonies of non-recombinant
bacteria because of
(a) insertional inactivation of alpha galactosidase
in recombinant bacteria
(b) inactivation of glycosidase enzyme in recombinant
bacteria
(c) non-recombinant bacteria containing beta
galactosidase
(d) insertional inactivation of alpha galactosidase
in non-recombinant bacteria.
in contrast to blue colonies of non-recombinant
bacteria because of
(a) insertional inactivation of alpha galactosidase
in recombinant bacteria
(b) inactivation of glycosidase enzyme in recombinant
bacteria
(c) non-recombinant bacteria containing beta
galactosidase
(d) insertional inactivation of alpha galactosidase
in non-recombinant bacteria.