Red Hair Inheritance
What is the genetics of red-hair people? Why does this trait
Hair color results from the combination of genes (i.e., the DNA) that you get
from both of your parents. There is no rule that says red hair must skip
generations. Indeed, it is quite possible that you inherited a gene from your
Great Grandma that is partly responsible for your hair color. YOUR hair color
depends on the color genes that you inherited from each of your parents, and
of course, one of them got some genes from your Great Grandma.
When you get further along in school, you will probably enjoy setting up some
matings of fruit flies in science lab, if you get the chance. You can perform
lots of fun experiments crossing red-eyed flies with white-eyed flies, etc.
Paul Mahoney, Ph.D.
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Update: June 2012