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A 16-year-old girl was abducted when she went to a local store. Her body was found the next morning and the autopsy revealed that she had been sexually assaulted and strangled. Crime scene investigators were able to collect a semen sample from vaginal fluid as well as tissue samples from underneath the victim’s fingernails. DNA samples were obtained from three suspects besides the victim. A variable number of tandem repeats (VNTR) analysis was performed on the DNA samples from the evidence collected, the victim, and the suspect and the results were compared.

Which of the following techniques is the most appropriately applied for this analysis?

A. Thin layer chromatography

B. Polyacrylamide gel electrophoresis

C. Northern blot

D. Southern blot

E. Western blot

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Case details- VNTR Analysis

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