Types Of Genetic DisordersTypes Of Genetic Disorders
Home Cardiology Critical Care Medicine Endocrinology Gastroenterology Neurology Health Care


Sponsored Links :


Types Of Genetic Disorders

Genetic disorder is a result of the wrong information sent by our chromosomes and genes. 

This disorder is classified into four categories.  These are single-gene genetic disorders, multifactorial genetic disorders, chromosomal genetic disorders and mitochondrial genetic disorders.

Single-Gene Disorder

Single-gene disorder is also termed as monogenic disorder or Mendellian which develop when mutation occurs in single gene only.  Single gene disorders are classified as Autosomal recessive, autosomal dominant, X-linked recessive, X-linked dominant and Y-linked disorders.  Examples of single-gene disorders are Marfan syndrome, sickle cell anemia, Huntington’s disease, cystic fibrosis and hereditary hemochromatosis.

Multifactorial Genetic Disorder

Multifactorial genetic disorder is also known as polygenic.  This type of genetic disorder is very complicated, hard to treat and very tricky to analyze.  This is the effect of the mutations among multiple genes.  Examples of this genetic disorder are cleft palate, diabetes, cancer, mental retardation, coronary heart disease and autism.

Chromosomal Disorder

Chromosomal Disorder is the result of the missing copies and presence of extra chromosomes.  Examples are Down syndrome, Klinefelter syndrome, William’s syndrome, Turner Syndrome and Cri-du-Chat Syndrome.  Down syndrome or Trisomy 21 is the most popular among these.  Here, the person having this type of disorder has three pairs of chromosome 21.
Mitochondrial disorder

Since only egg cells produce mitochondria in embryo development, this disorder originated from mothers.  This genetic disorder also takes place when mutation is present in the non chromosomal DNA of the cell or mitochondrial DNA.  Leber’s Hereditary Optic neuropathy is a very good example of this genetic disease.

More Articles :

Types Of Genetic Disorders

 Sponsored Links :
 
Web Presentation

Diseases:

What Are Genetic Disorders ?

What-Are-Genetic-Disorders      There are more than 4,000 estimated human genetic disorders.  According to researchers, the number increases as their knowledge about DNA grows.  More..

Sponsored Links :