Assertion: melanin | /r/HasProperty | absent
Facets:
value: during development
type: TEMPORAL
value: from the skin
type: OTHER
value: from hair
type: OTHER
Source sentences:
text: The fovea fails to develop properly if melanin is absent during development.
text: Additionally, neural connections between the retina and the brain are altered if melanin in the retina is absent during development.
text: The blue eye occurs within a white spot, where melanin is absent from the skin and hair.