There are three types of genetic disorders: 1  Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example. 2  Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed. Chromosomes are the structures that hold our genes. 3  Complex disorders, where there are mutations in two or more genes.
OSI model. The Open Systems Interconnection model (OSI model) is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to their underlying internal structure and technology. Its goal is the interoperability of diverse communication systems with standard protocols.
custom orthotics. OHI is the global leader in technologies and treatment options for healthcare providers who treat conditions associated with the lower extremities. Through a growing family of brands, OHI continues to innovate and create global scale in an effort to provide a complete lower extremity solution. Recognized as a pioneer in the field of manufacturing of custom foot orthoses and ankle foot orthoses (AFOs),