quantitative trait locus

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quantitative trait locus

[‚kwänt·ə‚tād·iv ¦trāt ′lō·kəs]
(genetics)
The location of a gene that affects a quantitative trait.
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Multifactorial inheritance refers to conditions determined by a combination of factors each with a minor but additive effect (i.
The overall risk of endometriosis in a first-degree relative of someone with the disease is 5%-8%, which suggests that more than one gene--and probably several--are involved in a polygenic, multifactorial inheritance that may not necessarily interact with the environment.
Genetic disorders are categorized into three types: single-gene defects, chromosome defects, and multifactorial inheritance.

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