Thursday, November 26, 2009

Is red hair an example of incomplete dominance?

This seems very likely. In 1999, a geneticist studied this phenomena very closely. He observed a family where both the mother and the father (P generation) had blond, and four children. The three children inherited the blond hair, except the youngest who inherited the red hair.



This phenomena isn't explained in Mendel's laws of inheritance. He only mentioned that two alleles seperate during gamete formation and t hen combine.



Very strange.



Is red hair an example of incomplete dominance?

In this case, blond could be dominant over red, so if the parents were both Bb, there could be a BB, Bb, Bb, and bb offspring, which would result in 3 complete dominance blondes and one totally recessive redhead. If what I remember is true, blond is totally dominant over red in human hair color.

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