Assertion: chromosome's copy | /r/HasProperty | joined by centromere
Facets:
value: together
type: MANNER
Source sentences:
text: Unduplicated chromosomes are single double helixes, whereas duplicated chromosomes contain two identical copies (called chromatids or sister chromatids) joined by a centromere.
text: Each original chromosome and its copy are joined together at the centromere and are called sister chromatids.