Why would scientists use a control sample that has no dna from bighead carp in edna surveillance? a. to amplify the dna in small samples b. to serve as a positive control against samples c. to cut sample dna into fragments d. to verify that no dna has contaminated the gel

I think the correct answer from the choices listed above is option D. Scientists would use a control sample that has no dna from bighead carp in edna surveillance in order to to verify that no dna has contaminated the gel. It would eliminate certain errors in the experiment.