Genetic Diseases Humans. They have a genetic link to many human diseases. There are more than 6,000 genetic diseases, often fatal or seriously crippling. A genetic disorder is caused by a DNA mutation and can be divided into four main groups: single-gene mutation; multiple mutations of genes; chromosomal variations and mitochondrial mutations.
Also Visit: Stop the Spread of Germs.
infographic by: www.labroots.com