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DNA, Satellite

"DNA, Satellite" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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Highly repetitive DNA sequences found in HETEROCHROMATIN, mainly near centromeres. They are composed of simple sequences (very short) (see MINISATELLITE REPEATS) repeated in tandem many times to form large blocks of sequence. Additionally, following the accumulation of mutations, these blocks of repeats have been repeated in tandem themselves. The degree of repetition is on the order of 1000 to 10 million at each locus. Loci are few, usually one or two per chromosome. They were called satellites since in density gradients, they often sediment as distinct, satellite bands separate from the bulk of genomic DNA owing to a distinct BASE COMPOSITION.


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This graph shows the total number of publications written about "DNA, Satellite" by people in this website by year, and whether "DNA, Satellite" was a major or minor topic of these publications.
Bar chart showing 13 publications over 11 distinct years, with a maximum of 2 publications in 2015 and 2017
To see the data from this visualization as text, click here.

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