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词汇 disomy
释义

Definition of disomy in English:

disomy

noundʌɪˈsəʊmidīˈsōmē
mass nounGenetics
  • The condition of having a chromosome represented twice in a chromosomal complement.

    〔遗传〕二体性

    Example sentencesExamples
    • This leads to disomy (two copies of each chromosome) following fertilization.
    • Uniparental disomy and imprinting modify gene expression with passage through maternal or paternal meiosis.
    • We found that the rate of chromosome I disomy among vik1 spores was indistinguishable from that observed in wild-type strains.
    • It may be of interest to examine the sperm of men with different sized Y chromosomes to see whether there is a relationship between the level of sex chromosome disomy and Y chromosome size.
    • Some cases of AS result from inheritance of both chromosomes in the 15 pair from the father, an unusual genetic phenomenon known as uniparental disomy.

Derivatives

  • disomic

  • adjectivedʌɪˈsəʊmɪk
    Genetics
    • Over time, however, diploidization of the genome occurs and disomic segregation becomes prevalent.
      Example sentencesExamples
      • Given that cultivated peanut is a disomic polyploid, 20 linkage groups were expected.
      • We again found some events to be disomic for chromosome III.
      • Many polyploids, however, have disomic chromosome behavior.
      • Segregation patterns in families suggested a partially duplicated genome structure and disomic inheritance.

Origin

1980s: from di- ‘two’ + -some + -y.

Definition of disomy in US English:

disomy

noundīˈsōmē
Genetics
  • The condition of having a chromosome represented twice in a chromosomal complement.

    〔遗传〕二体性

    Example sentencesExamples
    • Uniparental disomy and imprinting modify gene expression with passage through maternal or paternal meiosis.
    • It may be of interest to examine the sperm of men with different sized Y chromosomes to see whether there is a relationship between the level of sex chromosome disomy and Y chromosome size.
    • We found that the rate of chromosome I disomy among vik1 spores was indistinguishable from that observed in wild-type strains.
    • This leads to disomy (two copies of each chromosome) following fertilization.
    • Some cases of AS result from inheritance of both chromosomes in the 15 pair from the father, an unusual genetic phenomenon known as uniparental disomy.

Origin

1980s: from di- ‘two’ + -some + -y.

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