AP Biologyhardmcq1 pt
DNA fingerprinting relies on
A.differences in repetitive DNA lengths between individuals
B.identical genomes in all humans
C.protein shapes unique to each person
D.RNA transcription rates
Explanation
Core Concept
Short tandem repeats vary in copy number per person; PCR amplification plus gel electrophoresis of these loci produces a unique banding pattern.
Correct Answer
Adifferences in repetitive DNA lengths between individuals
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