Understand genetic diseases
Genetics is the branch of biology that studies how outward characteristics and other characteristics of parents are transferred to children. These properties are called "genetic" because they are determined by tiny structures in the human cells called genes. The genetic composition of humans is inherited from their parents and is encoded in the genes of all their cells. This composition determines many different things, from gender, length and color of the eyes to blood type and development of certain diseases.
Many common diseases (such as heart disease, high blood pressure, cancer types) have genetic (ie hereditary) components, but genetic diseases are the diseases caused by specific, identifiable elements of a person's genetic makeup.
Lysosomal storage disorders are one category of genetic diseases. In order to understand the cell activities that cause these diseases, as well as the way they are transferred from parent to child, you need to understand some basic principles of genetics.