Multiple choice

Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originate as adaptation. These imprints need to be used

  1. on plates with and without streptomycin

  2. only on plates with streptomycin

  3. on plates with minimal medium

  4. only on plates without streptomycin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 To check resistance of mutants against streptomycin they must be grown on plates with streptomycin. Only those bacterial colonies will propagate from the master that are resistant to the antibiotic.

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