presence of only one chromosome from a pair; partial monosomy refers to the
presence of only one copy of a segment of a chromosome
Definition from: GeneReviews
from the University of Washington and the National Center for Biotechnology Information
- Monosomy is the state of having a single copy of a chromosome pair instead of the usual two copies found in diploid cells. Monosomy can be partial if a portion of the second chromosome copy is present. Monosomy, or partial monosomy, is the cause of some human diseases such as Turner syndrome and Cri du Chat syndrome.
Definition from: Talking Glossary of Genetic Terms from the National Human Genome Research Institute
Related discussion in the Handbook
See also Understanding Medical Terminology.