Assertion: chromosome's arm | /r/CapableOf | double with 2 centromeres
Facets:
Source sentences:
text: The marker usually exists as an isodicentric chromosome; i.e. 2 copies of a specific part of the long arm of chromosome 15q11.2-q13.1 that is mirrored and doubled, with 2 centromeres and 2 DNA satellites.