Gene Expression and Eye Color
This Demonstration models the effect of melanin and lipochrome concentration on the color of the human iris. Melanin production is largely influenced by genes, which include the HERC2 and OCA2 genes. HERC2 stimulates the OCA2 gene to induce melanin production. This Demonstration shows how genetic defects in the HERC2 gene can lead to varying amounts of melanin production and, therefore, varying eye color. Use the buttons to set the amount of melanin in the eye, or the HERC2 functionality. Use the slider to control the concentration of lipochrome, which adds or subtracts yellow pigment in the iris.
This was a project for Advanced Topics in Mathematics II, 2018–2019, Torrey Pines High School, San Diego, CA.
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