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  2. 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.

  3. 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.

  4. SNP annotation - Wikipedia

    en.wikipedia.org/wiki/SNP_annotation

    Single nucleotide polymorphism annotation (SNP annotation) is the process of predicting the effect or function of an individual SNP using SNP annotation tools. In SNP annotation the biological information is extracted, collected and displayed in a clear form amenable to query.

  5. Single-base extension - Wikipedia

    en.wikipedia.org/wiki/Single-base_extension

    In the method, an oligonucleotide primer hybridizes to a complementary region along the nucleic acid to form a duplex, with the primer’s terminal 3’-end directly adjacent to the nucleotide base to be identified. Using a DNA polymerase, the oligonucleotide primer is enzymatically extended by a single base in the presence of all four ...

  6. Genotyping - Wikipedia

    en.wikipedia.org/wiki/Genotyping

    Humans can also be genotyped. For example, when testing fatherhood or motherhood, scientists typically only need to examine 10 or 20 genomic regions (like single-nucleotide polymorphism (SNPs)), which represent a tiny fraction of the human genome.

  7. Personal genomics - Wikipedia

    en.wikipedia.org/wiki/Personal_genomics

    Personal genomics or consumer genetics is the branch of genomics concerned with the sequencing, analysis and interpretation of the genome of an individual. The genotyping stage employs different techniques, including single-nucleotide polymorphism (SNP) analysis chips (typically 0.02% of the genome), or partial or full genome sequencing.

  8. Ancestry-informative marker - Wikipedia

    en.wikipedia.org/wiki/Ancestry-informative_marker

    A single-nucleotide polymorphism is a modification of a single nucleotide base within a DNA sequence. [1] There are an estimated 15 million SNP (Single-nucleotide polymorphism) sites (out of roughly 3 billion base pairs, or about 0.4%) from among which AIMs may potentially be selected. [2]

  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