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inheritance in which a measurable phenotype is generated by many loci, the contributions of which are statistically independent, additive, and of about equal value. (The latter are in accordance with the classic central limit therein and justify the use of the multivariate normal distribution in galtonian genetics.)
Synonym(s): polygenic inheritance
based on a multilocal system of character definition so that progeny present a continuous series of a characteristic rather than specific classes, e.g. a range of body weights rather than giants and dwarfs.