Genetic variations in DNA sequences in human populations, such as single nucleotide polymorphisms (SNPs), have been used to map "disease genes" by determining whether the SNP is linked to the mutant gene.

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Genetic variations such as SNPs can be used to identify links between certain genetic mutations and the development of certain diseases. By studying the inheritance patterns of these variations in affected individuals and their relatives, researchers can map the location of disease-related genes.

Genetic Variations in DNA Sequences in Human Populations, Such as Single