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Unformatted text preview: Inheritance of Eye Color in Humans Human eye color involves the polygenic inheritance of at least two genes, each of which lacks dominance. The eye color genes code for the production of a yellow-brown pigment First Iris Layer Pigment Second Iris Layer Pigment AA = Produce lots of pigment BB = Produce lots of pigment Aa = Produce some pigment Bb = Produce some pigment aa = Do not produce pigment bb = Do not produce pigment *There is also a yellow overlay gene which, when combined with the basic pigment gene alters light brown to hazel and light blue to green....
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- Spring '10