en.wikipedia.org/wiki/Allele

An allele is a variant form of a given gene. Sometimes, the presence of different alleles of the same gene can result in different observable phenotypic traits, such  ...

www.britannica.com/story/whats-the-difference-between-a-gene-and-an-allele

Genes and alleles are genetic sequences, and both determine biological traits. So, what makes them different?

www.nature.com/scitable/definition/allele-48

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.

www.khanacademy.org/science/high-school-biology/hs-classical-genetics/hs-introduction-to-heredity/v/alleles-and-genes

A gene as a stretch of DNA on a chromosome. Alleles as versions (sequence variants) of a gene.

www.sciencedaily.com/terms/allele.htm

An allele is a viable DNA (deoxyribonucleic acid) coding that occupies a given locus (position) on a chromosome. Usually alleles are sequences that code for a  ...

www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/allele

Alleles of diploid organisms are classified as being dominant, codominant, or recessive by comparing the phenotypes of heterozygotes and homozygotes.

www.ask.com/youtube?q=Allele&v=pv3Kj0UjiLE
Feb 1, 2018 ... Join the Amoeba Sisters as they discuss the terms "gene" and "allele" in context of a gene involved in PTC (phenylthiocarbamide) taste ...

isogg.org/wiki/Allele

Jan 29, 2017 ... An allele is one of two or more forms of the DNA sequence of a particular gene. Each gene can have different alleles. Sometimes, different DNA ...

www.brightstorm.com/science/biology/mendelian-genetics/alleles

Time-saving video on alleles and the description of alleles. An allele is one of the possible forms of a gene. There are usually two types of alleles -- a dominant ...