what causes a genetic disorder
Geneticists group genetic disorders into three categories: 1  Monogenetic disorders are caused by a mutation in a single gene. 2  The mutation may be present on one or both chromosomes (one chromosome inherited from each parent).
Genetic diseases are caused by error in the DNA in sequences called genes or sometimes in the much larger groups of genes called chromosomes. See also articles Introduction to Genetics and Introduction to Genetic Diseases. ... more Â».
The most common view is that disorders tend to result from genetic dispositions and environmental stressors, combining to cause patterns of distress or dysfunction or, more sharply, trigger disorders (Diathesis-stress model).