Chromosome 15q partial deletion is an extremely rare genetic disorder, caused by a chromosomal aberration in which one of the long ("q") arms of human chromosome 15 is deleted.

If the mother's copy of the chromosomal arm is deleted, Angelman syndrome results. If the father's copy of the chromosomal arm is deleted, Prader-Willi syndrome results.

See also

• Chromosome 15q trisomy
• Genetics
• Genetic deletion

Congenital genetic disorders