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Eye Color
In class when we have discussed eye color, we have assumed it is controlled by a single gene. Over the past thirty years scientists and geneticists have discovered that over 15 genes that influence a person's eye color. To complicate matters even further, if you look at several people that have "brown" eyes you'll notice they each have a different shade of brown.
The color of the eye is determined by the amount of a pigment called melanin is the eye. The more melanin produce in cells in the eye around the pupil the more brown one's eye color is. If a person lacks melanin or has very little then a person's eye color is blue.
For our activity we will say there are two genes that will control eye color. The genotypes for eye color is shown in the diagram below.
Disclaimer: As with all characteristics in this activity. The genotypes, number of alleles, and the inheritance patterns have been simplified to complete the activity
Eye Size, Shape, & Slantedness
Eyebrows
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