Genetics and Molecular Medicine Terms

Inherited variation, genomics, molecular markers, and targeted molecular care. Browse definitions and meanings below.

227 terms

What is genetics in medicine?

Genetics in a clinical setting is the study of how inherited instructions contribute to health and disease. It covers conditions caused by a single altered gene, the far commoner conditions where many genes each add a little risk, and the changes a tumor acquires during a person's life.

One distinction underlies most of the confusion here. An inherited change is present in every cell from conception and can pass to a child. An acquired change appears in one line of cells later on and cannot. Both are called mutations, and only one carries implications for the rest of a family.

Terms in this topic

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For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.