Biology / Bio 1561 · Atom · ~20 seconds
Genetic Markers: RFLP, VNTR, and SNP
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A genetic marker is a variable DNA sequence used to track chromosomal location; RFLP, VNTR, and SNP are three common types.
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An RFLP marker's pattern comes from restriction-cut fragment lengths, while a SNP marker is a single varying nucleotide position.
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RFLP, VNTR, and SNP name different kinds of sequence variation used as landmarks — none is itself a disease-causing mutation.