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Thread: Why Does Completely Unpigmented Hair Appears Yellowish Sometimes?

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    Why Does Completely Unpigmented Hair Appears Yellowish Sometimes?

    i know someone who was diagnosed for having albinism OCA1A so completely depigmented hair skin and eyes, so supposedly it should be white skin and hair and bluish grey eyes ryt?.... but in some pictures, he appears to have like a yellowish hair almost the color of a bleach blonde hair.. but a bit lighter...

    can you explain why? thanks

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    I'm not sure, but I breed snakes and know a bit about similar things:

    http://en.wikipedia.org/wiki/Amelanism

    http://en.wikipedia.org/wiki/Leucism

    http://en.wikipedia.org/wiki/Axanthism

    http://en.wikipedia.org/wiki/Albinism

    In animals that are amelanistic they still have the ability to produce red and yellow pigmentation.

    Also, anerythrism describes a lack of yellow pigmentation and axanthism means lacking red pigmentation.

    No offense but albinism usually occurs where bottlenecking has occurred. Albinism is a simple recessive trait, to reproduce albino animals in captivity usually involves inbreeding.

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    Smile

    Quote Originally Posted by Oski View Post
    No offense but albinism usually occurs where bottlenecking has occurred. Albinism is a simple recessive trait, to reproduce albino animals in captivity usually involves inbreeding.

    about this, i think most traits that animals or people have whatsoever started as mutation and yeah kinda had inbreeding happened to spread this traits....

    about the albinism and bottlenecking (btw what is bottlenecking?) im not sure about animals but the people i know that had albinism are perfectly normal except for some vision prob and sensitivity to light.....

    thanks for the links anyways but im pretty much sure that he was entirely unpigmented ( so no melanin at all)... so why still have that yellowish tinge on his hair???? hmmm....

    hope you could help

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    Quote Originally Posted by blakemartin
    Why Does Completely Unpigmented Hair Appears Yellowish Sometimes?
    I would say the reason is that your acquaintance is not entirely depigmented.
    In the past I had thought that albinism is always complete, but have since discovered that it actually comes in varying degrees; perhaps it's related to incomplete dominance.

    Anyway, I remember seeing a picture of albino Nigerians. Their hair was yellow and their skin a light tan colour; I think their eye colour may have been light brown, if I remember rightly.

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