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  2. Repeated sequence (DNA) - Wikipedia

    en.wikipedia.org/wiki/Repeated_sequence_(DNA)

    The presence of repeated sequence DNA makes it easier for areas of homology to align, thereby controlling when and where recombination occurs. In addition to playing an important role in recombination, tandem repeats also play important structural roles in the genome. For example, telomeres are composed mainly of tandem TTAGGG repeats. [15]

  3. Interspersed repeat - Wikipedia

    en.wikipedia.org/wiki/Interspersed_repeat

    Interspersed repetitive DNA is found in all eukaryotic genomes. They differ from tandem repeat DNA in that rather than the repeat sequences coming right after one another, they are dispersed throughout the genome and nonadjacent. The sequence that repeats can vary depending on the type of organism, and many other factors.

  4. Satellite DNA - Wikipedia

    en.wikipedia.org/wiki/Satellite_DNA

    For example, minisatellite DNA is a short region (1-5 kb) of repeating elements with length >9 nucleotides. Whereas microsatellites in DNA sequences are considered to have a length of 1-8 nucleotides. [8] The difference in how many of the repeats is present in the region (length of the region) is the basis for DNA profiling. [citation needed]

  5. Minisatellite - Wikipedia

    en.wikipedia.org/wiki/Minisatellite

    In genetics, a minisatellite is a tract of repetitive DNA in which certain DNA motifs (ranging in length from 10–60 base pairs) are typically repeated two to several hundred times. [1] Minisatellites occur at more than 1,000 locations in the human genome and they are notable for their high mutation rate and high diversity in the population. [2]

  6. Microsatellite - Wikipedia

    en.wikipedia.org/wiki/Microsatellite

    DNA polymerase slippage is more likely to occur when a repetitive sequence (such as CGCGCG) is replicated. Because microsatellites consist of such repetitive sequences, DNA polymerase may make errors at a higher rate in these sequence regions. Several studies have found evidence that slippage is the cause of microsatellite mutations.

  7. Intergenic region - Wikipedia

    en.wikipedia.org/wiki/Intergenic_region

    Non-functional DNA elements such as pseudogenes and repetitive DNA, both of which are types of junk DNA, can also be found in intergenic regions—although they may also be located within genes in introns. [2] It is possible that these regions contain as of yet unidentified functional elements, such as non-coding genes or regulatory sequences. [3]

  8. Tandem repeat - Wikipedia

    en.wikipedia.org/wiki/Tandem_repeat

    All tandem repeat arrays are classifiable as satellite DNA, a name originating from the fact that tandem DNA repeats, by nature of repeating the same nucleotide sequences repeatedly, have a unique ratio of the two possible nucleotide base pair combinations, conferring them a specific mass density that allows them to be separated from the rest of the genome with density-based laboratory ...

  9. Long interspersed nuclear element - Wikipedia

    en.wikipedia.org/wiki/Long_interspersed_nuclear...

    Increased L1 copy numbers have also been found in the brains of people with schizophrenia, indicating that LINE elements may play a role in some neuronal diseases. [ 28 ] Mechanism of target-primed reverse transcription (TPRT) , directly at the site of integration: L1 RNP recognize AAAATT hexanucleotides and ORF2 endonuclease activity cleaves ...