SINGLE-NUCLEOTIDE POLYMORPHISM (SNP) By N., Pam M.S. - April 13, 2013 A common and tiny DNA variation that occurs every 1000 bases and effects single nucleotide. These can be used genetic markers to track inheritance. These variations are used as genetic makers. SINGLE-NUCLEOTIDE POLYMORPHISM (SNP): "Single nucleotide polymorphism is used to track defective genes in families." Related Psychology Terms GENETIC MAP PERSONAL EQUATION AGE OF ONSET GOOD GENES HYPOTHESIS MENDELIAN INHERITANCE GUANINE ENDOPHENOTYPE MULTIFACTORIAL MODEL PELLET GENE LINKAGE Cite this page: N., Pam M.S., "SINGLE-NUCLEOTIDE POLYMORPHISM (SNP)," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/single-nucleotide-polymorphism-snp/ (accessed September 24, 2021).