A Level Biology Revision (Year 13) Multiple Alleles

Mendel implied that only two alleles, one dominant and one recessive, could exist for a given gene. We now know that this is an oversimplification.

However, sometimes different alleles can result in different observable phenotypic traits, such as different pigmentation.

The different alleles could then be designated as the OPRM1:c.118A allele and the OPRM1:c.118G allele. In combination with variants of other genes, the ...

Different versions of the same gene are called alleles (uh-LEELZ); homologous chromosomes often contain different alleles. ... For example, different alleles ...

Alleles are described as a variant of a gene that exists in two or more forms. Each gene is inherited in two alleles, i.e., one from each parent. Thus, this ...

The short answer is that an allele is a variant form of a gene. Explained in greater detail, each gene resides at a specific locus (location on a chromosome) ...

Allele means different genes given. In genetics it is com- mon for genes to show deviations or variations. All al- leles together form a set of ...

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome.