Quick Reference

Describing a nucleus, cell, or organism in which one or more chromosomes have been added to or deleted from the complete set, so that the total number of chromosomes is not an exact multiple of the haploid number (n); for example, 2n + 1 (see trisomy) or 2n – 1 (monosomy). Compare euploid.

Subjects: Biological Sciences.

Reference entries

See all related reference entries in Oxford Index »