Assertion: neanderthal's gene | /r/HasProperty | crucial
Facets:
value: for brain development
type: PURPOSE
value: in humans
type: OTHER
value: to language
type: TRANSITIVE-OBJECT
value: for sperm fertility
type: PURPOSE
Source sentences:
text: It is, says Reich, a pattern often seen in couplings between not-quite-compatible species, as the X chromosome carries genes that are crucial for sperm fertility.
text: They appear to have had a gene that is crucial to language in humans, and they buried their dead, which seems too complex an idea to have arisen among a tribe of mutes.
text: The latest work focuses on differences in three genes known to be crucial for brain development.