Topics: Biotechnology: Tools & Techniques Quiz
What happens during the cooling phase of PCR?
A. DNA strands separate
B. Primers bind to the DNA strands
C. Nucleotides are removed from the DNA
D. DNA is cut by restriction enzymes
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DNA fragments move through the gel during electrophoresis because:
A. DNA is positively charged
B. DNA is neutral
C. DNA is negatively charged and moves toward the positive electrode
D. DNA does not move in an electric field