Multiple Choice
Methods for Analyzing DNA: A source of heat-stable DNA polymerase commonly used in PCR is which of the following organisms?
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18. Molecular Genetic Tools
Methods for Analyzing DNA
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In agarose gel electrophoresis used for DNA analysis, which DNA fragments move faster through the gel toward the positive electrode?
A
Larger (longer) DNA fragments
B
DNA fragments with higher GC content always move faster than those with lower GC content
C
DNA fragments with more negative charge per nucleotide move faster because charge varies widely among fragments
D
Smaller (shorter) DNA fragments
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