Why do some blonds turn into brunettes when they have recessive genotypes?

Subject: Why do some blonds turn into brunettes when they have recessive genotypes?

Date: Wed Jan 31 13:09:09 2001
Posted by Christine
Grade level: 7-9 School: Olmsted Falls Middle School
City: Olmsted Falls State/Province: Ohio Country: United States
Area of science: Genetics
ID: 980964549.Ge

Message:


Brunnettes have dominant genotypes and blonds and red heads have recessive 
genotypes. Sometimes when blonds get older, their hair turns brown- Why?

Re: Why do some blonds turn into brunettes when they have recessive genotypes?

Current Queue | Current Queue for Genetics | Genetics archives

Try the links in the MadSci Library for more information on Genetics.