Assertion: centromere | /r/HasProperty | heterochromatic
Facets:
Source sentences:
text: Both centromeres and telomeres are heterochromatic, as is the Barr body of the second, inactivated X-chromosome in a female.
text: The perception that centromeres are heterochromatic was challenged when animal centromeres were found to comprise ∼15–40 kb blocks or subdomains of CENP-A nucleosomes, alternating with subdomains of H3 nucleosomes [] bearing the H3K4me2 mark of active transcription [].