Multiple Choice
Why is X-gal used in cloning medium?
A) It distinguishes between bacteria that have been transformed with recombinant plasmids and nonrecombinant plasmids by black-white screening.
B) It distinguishes between bacteria that have been transformed with recombinant plasmids and nonrecombinant plasmids by blue-white screening.
C) It distinguishes between plasmids that have been transformed and those that have not by blue-white screening.
D) It distinguishes between plasmids that have been transformed and those that have not by black-white screening.
Correct Answer:

Verified
Correct Answer:
Verified
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