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disomy Line breaks: di¦somy
Pronunciation: /dʌɪˈsəʊmi/

Definition of disomy in English:


[mass noun] Genetics
The condition of having a chromosome represented twice in a chromosomal complement.
Example sentences
  • 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.


Pronunciation: /dʌɪˈsəʊmɪk/
Example sentences
  • Many polyploids, however, have disomic chromosome behavior.
  • Over time, however, diploidization of the genome occurs and disomic segregation becomes prevalent.
  • Given that cultivated peanut is a disomic polyploid, 20 linkage groups were expected.


Late 20th century: from di-1 'two' + -some3 + -y3.

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