Genetic Defects

Solving medical 'cold cases' through genetics

Researchers have identified the genetic mutation responsible for one patient's serious health problems, finally solving a medical mystery that has endured for over 30 years. Thanks to this discovery, the researcher developed ...

Apr 06, 2017
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A genetic disorder is an illness caused by abnormalities in genes or chromosomes, especially a condition that is present from before birth. Most genetic disorders are quite rare and affect one person in every several thousands or millions.

A genetic disorder may or may not be a heritable disorder. Some genetic disorders are passed down from the parents' genes, but others are always or almost always caused by new mutations or changes to the DNA. In other cases, the same disease, such as some forms of cancer, may be caused by an inherited genetic condition in some people, by new mutations in other people, and by non-genetic causes in still other people.

Some types of recessive gene disorders confer an advantage in certain environments when only one copy of the gene is present.

This text uses material from Wikipedia licensed under CC BY-SA

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