Assertion: nucleus's gene | /r/HasProperty | lost
Facets:
value: presumably
type: DEGREE
Source sentences:
text: A few organisms, such as the Cryptosporidium, actually have mitochondria that lack any DNA, presumably because all their genes have been lost or transferred.
text: Many genes in the genomes of mitochondria and chloroplasts have been lost or transferred to the nucleus of the host cell.