Genetic diseases , caused by an abnormality by an abnormality in a person’s genome and even the person’s entire genetic makeup, can range from minuscule to major and from a discrete mutation in a single base in the DNA of a single gene to a gross chromosome abnormality. Some of these genetic disorders are inherited; from parents; while others are caused by acquired changes or mutations in a pre-existing gene or group of genes. Not to mention the mutations that can occur either randomly or due to some environmental exposure. Know about Different Types of Inheritance? Genetic inheritances are divided into different categories – mainly four categories that include: Single Gene It is caused by changes or mutations in the DNA sequence of the single gene. Don’t surprise as there are more than 6000 known single-gene disorders that may occur to 1 in 100 or sometimes not. Cystic fibrosis, sickle cell anemia, Marfan syndrome, Huntington’s disease and Hemochromatosis are di...