Title: How Genetic Disorders Are Inherited
Headings: How Genetic Disorders Are Inherited
How Genetic Disorders Are Inherited
Understanding Patterns of Inheritance
Patterns of Inheritance
Autosomal Dominant
Autosomal Recessive
X-Linked Dominant
X-Linked Recessive
Mitochondrial
Other Inheritance Patterns
Y-Linked Disorders
Codominance

Content: A mutation of that DNA is responsible for mitochondrial disorders . Mitochondrial disorders are passed down from mothers: Only females can share mitochondrial mutations with their offspring because egg cells contribute mitochondria to the developing embryo; sperm cells do not. 6 ﻿
Conditions resulting from mutations in mitochondrial DNA can appear in every generation of a family and can affect both males and females. An example of a mitochondrial inherited disorder is Leber hereditary optic neuropathy, a form of sudden vision loss. 7 ﻿
Signs of Neurological Mitochondrial Disorders
Other Inheritance Patterns
In addition the the five maine patterns of inheritance there are a few others sometimes recognized by geneticists. Y-Linked Disorders
Because only males have a Y chromosome, only males can be affected by and pass on Y-linked disorders. All sons of a man with a Y-linked disorder will inherit the condition from their father. Some examples of Y-linked disorders are Y chromosome infertility and cases of Swyer syndrome in which a male's testicles do not develop normally 8 ﻿﻿.
Codominance
Codominant inheritance involves a relationship between two versions of a gene.