Genetic Defects

Two key proteins preserve vital genetic information

Cancer is often driven by various genetic mutations that are acquired through changes to a person's DNA over time. These alterations can occur at the chromosome level if the proteins are not properly organized and segregated ...

Aug 22, 2016
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Face shape is in the genes

Many of the characteristics that make up a person's face, such as nose size and face width, stem from specific genetic variations, reports John Shaffer of the University of Pittsburgh in Pennsylvania, and colleagues, in a ...

Aug 25, 2016
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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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