MadSci Network: Genetics |
Dear Rachel
For nearly all types of albinism both parents must carry an albinism gene to have a child with albinism. Because the body has two sets of genes,a person may have normal pigmentation but carry the albinism gene. If a person has one gene for normal pigmentation and one gene for albinism, he or she will have enough genetic information to make normal pigment. The albinism gene is "recessive" it does not result in albinism unless a person has two copies of the gene for albinism and no copy of the gene that makes normal pigment.
When both parents carry the gene, and neither parent has albinism, there is a one in four chance at each pregnancy that the baby will be born with albinism. This type of inheritance is called autosomal recessive inheritance.
You could also check out some of these interesting links http://www.cbc.umn.edu/iac/
http://www.albinism.org/
http://www.albinism.org.uk/albinism.htm
Feel free to ask if you have any more doubts.
Cheers
Man Mohan
Try the links in the MadSci Library for more information on Genetics.