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Poultry Breeding Chapter 3
Poultry Breeding Chapter 3
7
Agriculture
Undergraduate 3
01/12/2018

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Term
Dominance
Definition
the interaction among alleles at a locus
Term
complete dominance
Definition
dominant allele masks the recessive allele
Term
incomplete dominance
Definition
mix of 2 phenotypes yields offspring with intermediate phenotype, such as red X white yields pink
Term
codominance
Definition
heterozygote has both alleles equally expressed

red X white yields red and white spotted

ABO blood type is an example
Term
overdominance
Definition
heterozygote has a phenotype more pronounced than either of the homozygote

red X white yields deep red
Term
epistasis
Definition
the interaction among alleles at two or more loci
Term
example of epistasis in poultry
Definition
comb type
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