Assertion: human chimera | /r/HasProperty | rare
Facets:
value: exceedingly
type: DEGREE
Source sentences:
text: Human chimeras were once thought to be exceedingly rare, perhaps occurring only once out of several thousands of births, but with advances in genetic karyotype testing becoming more affordable and widespread in availability in recent years, the occurrence of this phenomenon is being revealed to although still be quite rare, it happens more frequently than originally thought since most human chimeras go thru there entire lives without exhibiting any physical signs, especially when both original zygotes were the same genetic sex, and their chimeric condition is only discovered by chance with a DNA test.