Understanding:
• The various specific forms of a gene are alleles
• Alleles differ from each other by one or only a few bases
Alleles are alternative forms of a gene that code for the different variations of a specific trait
- For example, the gene for eye colour has alleles that encode different shades / pigments
As alleles are alternative forms of the one gene, they possess very similar gene sequences
- Alleles only differ from each other by one or a few bases
Genes and Potential Allelic Variations