Assertion: numerical abnormality | /r/CapableOf | occur as a result of nondisjunction
Facets:
value: during meiosis
type: TEMPORAL
value: often
type: OTHER
Source sentences:
text: Numerical abnormalities, also known as aneuploidy, often occur as a result of nondisjunction during meiosis in the formation of a gamete; trisomies, in which three copies of a chromosome are present instead of the usual two, are common numerical abnormalities.