Genetic disorders may be classified into three major categories: (1) single gene disorders, (2) chromosome disorders, and (3) multifunctional disorders or the complex diseases.
Two examples of each categories, still following the orders above are: (1) Huntington's disease and cystic fibrosis, (2) Down's syndrome and Jacobsen symdrome, and (3) heart diseases and variations of cancers.
✔️Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example.
✔️Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed. Chromosomes are the structures that hold our genes. Down syndrome is a chromosomal disorder.
✔️Complex disorders, where there are mutations in two or more genes. Often your lifestyle and environment also play a role. Colon cancer is an example.
