Assertion: chromosome's copy | /r/HasProperty | joined to the original
Facets:
value: by a centromere
type: OTHER
Source sentences:
text: Before this happens, every chromosome is copied once (S phase), and the copy is joined to the original by a centromere, resulting either in an X-shaped structure (pictured here) if the centromere is located in the middle of the chromosome or a two-arm structure if the centromere is located near one of the ends.