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gene

a gene contains genetic information that is passed from a parent to their child. this determines the colour 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 and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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