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

1. A. Non-recombinant bacteria containing beta-galactosidase
2. B. Insertional inactivation of alpha-galactosidase in non-recombinant bacteria
3. C. Insertional inactivation of alpha-galactosidase in recombinant bacteria
4. D. Inactivation of glycosidase enzyme in recombinant bacteria

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