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  1. Genetics - Wikipedia

    https://en.wikipedia.org/wiki/Genetics

    Genetics is the study of genes, genetic variation, and heredity in organisms. [1] [2] [3] It is an important branch in biology because heredity is vital to ...

  2. Genetics: MedlinePlus Medical Encyclopedia

    https://medlineplus.gov/ency/article/002048.htm

    Jan 26, 2026 ... Genetics is the study of heredity, the process of a parent passing certain genes to their children. A person's appearance -- height, ...