noun, noun which may take the genitive case particle 'no'
aneuploidy; heteroploidy
Biology term for an abnormal chromosome number that is not an exact multiple of the haploid set. Used in genetics and cytogenetics.
ダウン症は21番染色体の異数性によって起こる。
Down syndrome is caused by aneuploidy of chromosome 21.
異数性の細胞はがん組織
Aneuploid cells are often found in cancer tissues.
From 異 (different) + 数 (number) + 性 (property). A modern scientific coinage corresponding to English 'aneuploidy'.