[Answer] A polygenic trait is controlled by three pairs of alleles. What are the two extreme genotypes for this trait?

Answer: Draw a deflected shape of a continuous beam(two spans with a cantilever portion) under a uniform load and show the locations of main reinforcement

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A polygenic trait is controlled by three pairs of alleles. What are the two extreme genotypes for this trait? In many cases genotypic interactions between the two alleles at a locus can be described as dominant or recessive according to which of the two homozygous phenotypes the heterozygote most resembles. Where the heterozygote is indistinguishable from one of the homozygotes the allele expressed is the one that leads to the "dominant" phenotype and the other allele is said … Gene effects. In diploid organisms the average genotypic "value" (locus value) may be defined by the allele "effect" together with a dominance effect and also by how genes interact with genes at other loci ().The founder of quantitative genetics - Sir Ronald Fisher - perceived much of this when he proposed the first mathematics of this branch of genetics. "Heritability" is defined as the proportion of variance in a trait which is attributable to genetic variation within a defined population in a specific environment. Heritability takes a value ranging from 0 to 1; a heritability of 1 indicates that all variat...

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