Assertion: platelet | /r/CapableOf | lack nucleus
Facets:
Source sentences:
text: Platelets lack a nucleus, but do contain some organelles, such as mitochondria and endoplasmic reticulum fragments.
text: Because they lack a nucleus, they do not contain nuclear DNA.
text: However, since platelets lack a nucleus, they only live for around 10 days in circulation, or up to 36 hours stored in the spleen.
text: They lack nuclei.