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# Complex traits and populations

Heritability, polygenic risk and how alleles vary between populations.

4 pages

- [**Multifactorial (complex) disorders** The commonest diseases, such as type 2 diabetes and hypertension, arise from many genes of small…](https://durgical.com/en/general-pathology/multifactorial-disorders/)
- [**Complex traits: familial risk, twins, heritability and polygenic scores** Common diseases run in families without a simple pattern; twin studies, heritability and…](https://durgical.com/en/biochemistry/topics/complex-traits-familial-risk-twins-heritability-and-polygenic-scores/)
- [**Population genetics: Hardy–Weinberg and carrier frequency** How common a disease-causing allele is in a population, and why it can be more frequent in some…](https://durgical.com/en/biochemistry/topics/population-genetics-hardy-weinberg-and-carrier-frequency/)
- [**Apolipoprotein E (ApoE)** ApoE is the key that lets chylomicron remnants and IDL into the liver; its variants change…](https://durgical.com/en/biochemistry/enzymes/apolipoprotein-e/)

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This section is an index: it gathers pages from Biochemistry, Pathology, Embryology and other sections without repeating them. Educational content; it does not replace a geneticist's assessment or genetic counselling.

Representative model, for educational purposes only.

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Source: https://durgical.com/en/genetics/complex/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/genetics/complex/