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UNIT 3, CHPT 11

CHAPTER 11.3

QuestionAnswer
what is complete dominance? phenotypes of the heterozygote and dominant homozygote are indistinguishable
what is incomplete dominance? phenotype of heterozygotes is intermediate between the phenotypes of individuals homozygous for either allele
what is codominance? phenotypes of both alleles are exhibited in the heterozygote because both alleles effect the phenotype in separate, distinguishable ways
what are multiple alleles? most genes have more than two allelic forms
what is pleiotrophy? a single gene having multiple effects
what is epistasis? phenotypic expression of a gene at one locus alters the phenotypic expression of another gene at a second locus
what are quantitative characters? a heritable feature that varies continuously over a range rather than in an either-or fashion
what is polygenic inheritance an additive effect of two or more genes on a single phenotypic character
what is multifactorial? referring to a phenotypic character that is influenced by multiple genes and environmental factors
what influences phenotype? genotype and environmental factors
Created by: SuperBugLover
 

 



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