Dna Sequences That Contribute To Polygenic Traits Are Called

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Dna Sequences That Contribute To Polygenic Traits Are Called

often produces a "continuously varying" phenotype, also called a quantitative trait. DNA sequences that contribute to polygenic traits are called quantitative trait loci, or QTLs. 2) A multifactorial trait is continuously varying if it is also polygenic. That is, it is the multi-gene component of the trait that contributes the continuing variation of the phenotype.
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The individual genes that confer a polygenic trait follow Mendel's laws, but together they do not produce single-gene phenotypic ratios. They all contribute to the phenotype, but without being dominant or recessive to each other. Single-gene traits are instead discrete or qualitative, often providing an "all-or-none" phenotype such as "normal" versus "affected."
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