Epistasis and Complementation Video Lessons

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Problem: Which statement below defines epistasis? a) when a single gene affects several phenotypes b) a measurement of phenotype intensity c) when one gene influences or masks the effect of another gene d) a heterozygote displays a phenotype intermediate between its two alleles

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Epistasis: the presence or absence of one gene influences or mask the phenotype of another gene

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Problem Details

Which statement below defines epistasis? 

a) when a single gene affects several phenotypes 

b) a measurement of phenotype intensity 

c) when one gene influences or masks the effect of another gene 

d) a heterozygote displays a phenotype intermediate between its two alleles

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