Various Techniques Have Been Developed to Isolate Strains of Bacteria

Various techniques have been developed to isolate strains of bacteria carrying a particular mutation.In one,bacteria containing wild-type cells and cells of a desired mutant are grown on a medium lacking the nutrient for which the desired mutants are auxotrophic but containing the an antibiotic that only kills growing cells.In this environment,

A) both wild-type and mutant cells are killed.
B) both wild-type and mutant cells survive.
C) wild-type cells survive;mutant cells die.
D) wild-type cells die;mutant cells survive.
E) only double mutants survivE.

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