Incomplete Dominance

Winnie Harlow was a finalist on Cycle 21 of America's Next Top Model

What is Incomplete Dominance

*One allele for a specific trait is not completely dominant over the other allele. This results in a third phenotype in which the expressed physical trait is a combination of the dominant and recessive phenotype.

* There is only the recessive allele

*  Discovered by botanist Carl Currans after examining the "four'o'clock" flower

* Most examples of Incomplete Dominance have to do with color, in some shape or form

* Genotype Ratio: 1:2:1

Michael Jackson brought this disease to the spotlight

What is Vitiligo

*Vitiligo is a rare skin condition where pigment is either lost or greatly increase, resulting in random white and brown patches on the body

*Vitiligo is caused when the cells that create the skin pigment (melanocytes) are destroyed

*The distorted patches of pigment do not always spread, but the spreading is most often linked to emotional stress

*Vitiligo is often developed in those with the autoimmune disease hyperthyroidism

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