<P> An allele ( / əˈliːl / ) is a variant form of a given gene . Sometimes , different alleles can result in different observable phenotypic traits , such as different pigmentation . A notable example of this trait of color variation is Gregor Mendel 's discovery that the white and purple flower colors in pea plants were the result of `` pure line '' traits which could be used as a control for future experiments . However , most genetic variations result in little or no observable variation . </P>
<P> An allele ( / əˈliːl / ) is a variant form of a given gene . Sometimes , different alleles can result in different observable phenotypic traits , such as different pigmentation . A notable example of this trait of color variation is Gregor Mendel 's discovery that the white and purple flower colors in pea plants were the result of `` pure line '' traits which could be used as a control for future experiments . However , most genetic variations result in little or no observable variation . </P>
multiple forms of a gene are referred to as
multiple forms of a gene are referred to as
allele
allele