SNPs are genetic variants in which one base in the deoxyribonucleic acid (DNA) is altered (e.g., a G instead of an A at a particular locus). The term single nucleotide variant (SNV) is also widely used to include both rare variants and common polymorphisms.
See Allele, Genetic variant and Genotype.
References
Other terms in 'Useful genetic terms ':
- Allele
- Chromosome
- Cis- and trans-variants
- Copy number variation
- Deoxyribonucleic acid (DNA)
- Gene
- Genetic variant
- Genotype
- Haplotype
- Heterozygous or Heterozygote
- Homozygous or Homozygote
- Linkage disequilibrium (LD)
- Locus
- Palindromic single nucleotide polymorphism (SNP)
- Polygenic risk score (PRS)
- Polymorphism
- Rare variants