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| genetic disorders |
Genetic Disease List - Genetic disease or genetic disorder is a condition caused by abnormalities by one or more genes that cause a clinical phenotype conditions. Some of the causes of genetic diseases, among others:
Abnormal number of chromosomes as in Down syndrome (presence of an extra chromosome 21) and Klinefelter syndrome (males with two X chromosomes).
Recurrent gene mutations that can cause fragile X syndrome or Huntington's disease.
Defective genes inherited from the parents. In this case, the genetic disease is also known as hereditary diseases. This condition occurs when an individual born of two healthy individuals carrying the defective gene, but can also occur when the defective gene is a dominant gene.
Today there are about 4,000 genetic diseases that have been identified. Most genetic diseases are rare with only occurs in approximately 1 individual of thousands or even millions of individuals. Genetic Disease List
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