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  2. Single-nucleotide polymorphism - Wikipedia

    en.wikipedia.org/wiki/Single-nucleotide_polymorphism

    The upper DNA molecule differs from the lower DNA molecule at a single base-pair location (a G/A polymorphism) In genetics and bioinformatics, a single-nucleotide polymorphism (SNP / s n ɪ p /; plural SNPs / s n ɪ p s /) is a germline substitution of a single nucleotide at a specific position in the genome.

  3. Gene polymorphism - Wikipedia

    en.wikipedia.org/wiki/Gene_polymorphism

    A polymorphism can be any sequence difference. Examples include: Single nucleotide polymorphisms (SNPs) are a single nucleotide changes that happen in the genome in a particular location. The single nucleotide polymorphism is the most common form of genetic variation. [15]

  4. SNP array - Wikipedia

    en.wikipedia.org/wiki/SNP_array

    A single nucleotide polymorphism (SNP), a variation at a single site in DNA, is the most frequent type of variation in the genome. Around 335 million SNPs have been identified in the human genome , [ 1 ] 15 million of which are present at frequencies of 1% or higher across different populations worldwide.

  5. Human genetic variation - Wikipedia

    en.wikipedia.org/wiki/Human_genetic_variation

    DNA molecule 1 differs from DNA molecule 2 at a single base-pair location (a C/T polymorphism). Main article: Single nucleotide polymorphism A single nucleotide polymorphism (SNP) is a difference in a single nucleotide between members of one species that occurs in at least 1% of the population.

  6. SNPedia - Wikipedia

    en.wikipedia.org/wiki/SNPedia

    SNPedia (pronounced "snipedia") is a wiki-based bioinformatics web site that serves as a database of single nucleotide polymorphisms (SNPs). Each article on a SNP provides a short description, links to scientific articles and personal genomics web sites, as well as microarray information about that SNP.

  7. dbSNP - Wikipedia

    en.wikipedia.org/wiki/DbSNP

    The Single Nucleotide Polymorphism Database [1] (dbSNP) is a free public archive for genetic variation within and across different species developed and hosted by the National Center for Biotechnology Information (NCBI) in collaboration with the National Human Genome Research Institute (NHGRI).

  8. Tag SNP - Wikipedia

    en.wikipedia.org/wiki/Tag_SNP

    A tag SNP is a representative single nucleotide polymorphism (SNP) in a region of the genome with high linkage disequilibrium that represents a group of SNPs called a haplotype. It is possible to identify genetic variation and association to phenotypes without genotyping every SNP in a chromosomal region.

  9. List of Y-DNA single-nucleotide polymorphisms - Wikipedia

    en.wikipedia.org/wiki/List_of_Y-DNA_single...

    Mutation number Nucleotide change Position () Total size () Position Forward 5′→3′ Reverse 5′→3′ M1 (YAP) 291bp insertion M2 A to G: 168 209 aggcactggtcagaatgaag