39+ Multiple Allele Trait Definition Biology Images. Multiple alleles alleles are alternative forms of a gene, and they are responsible for differences in phenotypic expression of a given trait (e.g., brown eyes versus green eyes). Compare multiple alleles and polygenic traits.
The phrase multiple alleles in biology refers to a series with at least three allelic or alternative forms of a particular gene with only two that are able to exist in diploid individuals. Many human traits have more complicated modes of inheritance than mendelian traits. Multiple allelism describes genes that exist in three or more allelic forms.
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It is easiest to consider situations where each gene affects only one. It is important to note that while. It makes absolutely no sense whatsoever to continue if we don't two possible phenotypes of one trait (pod color) are determined by two alleles (forms) of the one if there are only two alleles involved in determining the phenotype of a certain trait, but there are three. Multiple alleles refer to a series of three or more alternative forms of a gene.
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