What is wrong with the genes associated with albinism?
For example with huntington's the gene is too big. What
is wrong with the albinism genes?
Albinism is caused by a loss-of-function mutation. That means the gene is
either missing altogether, missing some important part, or has a change at
some crucial point in the gene that eliminates its function. There may
not be an obvious change in the size of the gene at all. One tiny
substitution within the gene can result in the necessary change.
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Update: June 2012