M.Sc. Bio-Chemistry (PU-CET P.G) 2017 Panjab University Entrance Exam With Answers

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33.

DNA molecules labelled with 15N and 14N can be separated by

A: Pulse field gel electrophoresis
B: Density gradient ultracentrifugation
C: Capillary electrophoresis
D: Differential centrifugation

The answer is: B