Assertion: chromosome's gene | /r/HasProperty | shared
Facets:
value: between the avian zw
type: LOCATION
value: between mammalian xy chromosomes
type: LOCATION
Source sentences:
text: No genes are shared between the avian ZW and mammalian XY chromosomes, and, from a comparison between chicken and human, the Z chromosome appeared similar to the autosomal chromosome 9 in humans, rather than X or Y, leading researchers to believe that the ZW and XY sex determination systems do not share an origin, but that the sex chromosomes are derived from autosomal chromosomes of the common ancestor.