Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A line drawn on a pressure / volume / temperature graph through all points having the same value of the volume
  • n. A contour showing points of equal vertical thickness of strata; equal to an isopach if strata are horizontal
  • n. A sequence of DNA that has a reasonably constant proportion of pairs of guanine and cytosine bases, and is rich in genes

Etymologies

From iso- +‎ Ancient Greek χώρα ("place"). (Wiktionary)

Examples

  • The densities of insertions/deletions in chromosomes 17 to 22 are reported for the five isochore families.

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  • The slightly different amounts of DNA in isochore families between (A) and (B) are related to the fact that deletions in Venter's chromosomes are seen as insertions in the reference chromosomes, and the latter are slightly different from Venter's chromosomes because of insertions and deletions.

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  • The distributions of insertions/deletions are in striking contrast with those of SNPs which exhibit almost the same density across all isochore families with, however, a trend for lower concentrations in gene-rich regions.

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  • In sharp contrast with insertions/deletions, the densities of SNPs were largely uniform over all isochore families

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  • The isochore distribution of the whole human genome is from ref.

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  • In order to compare the two histograms, isochore frequencies were calculated as percentages of the total.

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  • The locations of insertions and deletions, respectively, in the isochore families of Venter's chromosomes 17 to 22 are summarized in

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  • The results in terms of numbers of insertions/deletions located in different isochore families are reported in

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  • Comparison of the cumulative isochore distribution on chromosomes 17 to 22 and on the whole human genome.

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  • Our results show that insertions and deletions are almost absent in L1 and generally scarce in L2 isochore families (GC-poor L1+L2 isochores represent slightly over half of the human genome), whereas they increase in GC-rich isochores, largely paralleling the densities of genes, retroviral integrations and

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