Animal Management > EXAM > Stutts - ANSC 4395 Breeding & Genetics - Test 4 QUESTIONS WITH COMPLETE ANSWERS (All)

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Stutts - ANSC 4395 Breeding & Genetics - Test 4 QUESTIONS WITH COMPLETE ANSWERS

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Phenotype Correct Answer: the outward appearance of an individual P=G+E Genetic Effects categories Correct Answer: additive effects - A dominance effects - D epistatic effects - genes at two di... fferent loci - I Additive gene action - codominance Correct Answer: each dominant allele gets +2 AA - +4 Aa - +2 aa - 0 Additive gene action - complete dominance Correct Answer: BB - +4 Bb - +4 bb - 0 Epistasis Correct Answer: interaction among genes at multiple loci I in the equation P = A + D + I + E Environmental component of equation Correct Answer: temporary environmental effect - Et permanent environmental effect - Ep Temporary environmental effects Correct Answer: sources of environmental variation that have somewhat of a temporary effect disease, weather, changes in management Permanent environmental effects Correct Answer: changes the way an animal performs for the rest of its life failure to have calf, severe illness, injury to udder Phenotypic Variance Correct Answer: the sum of the variances of all genetic and environmental effects If there is a normal distribution of phenotypes Correct Answer: there is a normal distribution of additive effects, dominance effects, epistatic effects, permanent environmental effects, and temporary environmental effects [Show More]

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