genetics in the ice age...pleistecene...
Asked by: jaybo-ga
List Price: $5.00
17 Jul 2003 06:56 PDT
Expires: 16 Aug 2003 06:56 PDT
Question ID: 231982
For a fan fic is it possible that a fair skinned child with red hair and negroid features born to a white red haired mother and half negro father be able to darken his skin by exposure to the sun for months or years?
Re: genetics in the ice age...pleistecene...
Answered By: alanna-ga on 17 Jul 2003 20:53 PDT
Skin color is inherited separately from other traits. It is not related to other characteristics like eye color or height or hair color. A "dark" skinned and a "light" skinned person may have offspring with a range of skin tints. The offspring are generally no darker than the darker parent, but can be much fairer. Anyone can deepen the tint of his or her skin. We do it all the time when we get a sun tan. Unless a person has a very fair skin, thereby burning in the sun, skin color can be darkened merely by getting a tan. If you stay in the sun year round, you will have a more or less permanent tan. Skin color is called a polygenic trait, meaning that more than one pair of genes are responsible for it. More on polygenic traits may be found at: http://highered.mcgraw-hill.com/sites/007246268x/student_view0/chapter7/ Alanna-ga
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