Additive genetic effects

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Additive genetic effects are the contributions to the final phenotype from more than one gene, or from alleles of a single gene (in heterozygotes), that combine in such a way that the sum of their effects in unison is equal to the sum of their effects individually.[1][2] Genetic effects that are not additive involve dominance (of alleles at a single locus) or epistasis (of alleles at more different loci).

See also[edit]


  1. ^ Rieger, R.; Michaelis, A.; Green, M.M. (1968), A glossary of genetics and cytogenetics: Classical and molecular, New York: Springer-Verlag, ISBN 9780387076683 
  2. ^