Multiple Choice
In methods for analyzing DNA (e.g., agarose gel electrophoresis), what is the primary purpose of a DNA size standard (DNA ladder)?
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18. Molecular Genetic Tools
Methods for Analyzing DNA
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In the context of methods for analyzing DNA, how does polymerase chain reaction (PCR) relate to DNA fingerprinting?
A
PCR directly separates DNA fragments by size in a gel to produce the banding pattern used for DNA fingerprinting.
B
PCR cuts DNA at restriction enzyme recognition sites to create RFLP patterns used in DNA fingerprinting.
C
PCR amplifies specific DNA regions (often STR loci) so there is enough DNA to generate a detectable DNA fingerprint profile.
D
PCR determines the exact nucleotide sequence of an individual’s genome to create a DNA fingerprint.
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