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I've achromatopsia, which chromosome is affected?
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Dr. Ralph Morgan Lewis
Family Medicine
In brief: Several
Rod monochromatism is most common form of achromatopsia, inherited as autosomal recessive condition; it can be can be caused by more than one gene mutation.
So far, mutations or variants of any of 4 genes, cnga3, cngb3, gnat2 and recently pde6c, have been linked to each causing rod monochromatism. These 4 genes appear to account for about 79% of cases of rod monochromatism. See comment below—>.

In brief: Several
Rod monochromatism is most common form of achromatopsia, inherited as autosomal recessive condition; it can be can be caused by more than one gene mutation.
So far, mutations or variants of any of 4 genes, cnga3, cngb3, gnat2 and recently pde6c, have been linked to each causing rod monochromatism. These 4 genes appear to account for about 79% of cases of rod monochromatism. See comment below—>.
Dr. Ralph Morgan Lewis
Dr. Ralph Morgan Lewis
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Dr. Ralph Morgan Lewis
—> http://www.achromatopsia.info/genetics/
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