For a quantitative trait explained by three loci in a additi

For a quantitative trait explained by three loci in a additive fashion, if the three locus genotype aabbcc corresponds to a phenotypic value of 2, and the three-locus genotype AABBCC corresponds to a phenotypic value of 14, then what is the phenotypic value corresponding to the three-locus genotype AaBbCc? A. 10 B. 4 C. 8 D. 20 E. 6

Solution

C). 8

It is given that the three-locus genotype aabbcc corresponds to a phenotypic value of 2, means each locus contributes a value of 0.33. The three-locus genotype AABBCC corresponds to a phenotypic value of 14, means each locus contributes a value of 2.33.

Thus, the phenotypic value corresponding to the three-locus genotype AaBbCc is = 7+1 = 8.