3) Fruit color in a particular plant is controlled by a set of three QTLs (quantitative trait loci, or "polygenes") that

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3 Fruit Color In A Particular Plant Is Controlled By A Set Of Three Qtls Quantitative Trait Loci Or Polygenes That 1 (60.59 KiB) Viewed 143 times

3) Fruit color in a particular plant is controlled by a set of three QTLs (quantitative trait loci, or "polygenes") that work in an equal and additive manner. Each QTL has two alleles (e.g. D and d); each allele represented by a capital letter produces “one dose" of blue pigment, while alleles represented with lower case letters do not produce any pigment at all. If a trihybrid plant (D/d; Ele; F/f) is testcrossed, what proportion of the offspring will have a parental fruit colour phenotype? Assume no environmental effects. Assume all three QTL assort independently.