Quantitative Genetics

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3 domain-specific abstractions whose origin domain is Quantitative Genetics.

• Additive genetic effects — Allelic contributions to a quantitative phenotype that combine linearly across copies and loci under a declared population and environmental model.
• Infinitesimal model — A quantitative-genetic model treating a trait’s heritable component as the sum of very many individually tiny genetic effects.
• Selection limits — A plateau in trait response despite continued directional selection, caused by exhausted heritable variation, opposing forces, or constrained genetic architecture.