A Simple Guide to Genetic Diseases by Kenneth Kee
Series: A Simple Guide to Medical Conditions, Book 11.
Approx. 4,530 words.
Published on November 12, 2012.
A genetic disease is a disease caused by a abnormal form of a gene called a variation or a change of a gene called a mutation.
Genetic disorders can be caused
1. by a mutation in one gene (monogenetic disorder)
Monogenetic disorders are relatively rare and are caused by a mutation in a single gene.
The mutation may be present on one or both chromosomes (one chromosome from each parent)