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Gene

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Gene

A gene contains genetic information that is passed from a parent to their child. This determines the color of a person's hair, eyes, and skin. Genes affect a person's risk for getting some diseases. Genes also affect how people respond to medicines.

Genes are arranged on structures called chromosomes. Changes (mutations) in genes or chromosomes may be undetectable or may cause genetic diseases, such as hemophilia or sickle cell disease. Genetic problems may also increase the risk for some conditions, such as heart disease and juvenile idiopathic arthritis.

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This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

NOTICE: This health information was not created by Columbia University Irving Medical Center and may not necessarily reflect specific CUIMC practices. For medical advice relating to your personal condition, please consult your doctor. Medical advice disclaimer.