What differs between two alleles of the same gene? The cell

Last updated: 7/8/2022

What differs between two alleles of the same gene? The cell they're in. One might be in a liver cell and the other in a blood cell. The chromosome they're on. One might be on Chromosome 12 and the other on chromosome 3. Their location. One allele might be at the end of chromosome while the other allele is in the middle of another chromosome. Their base sequence. One allele might have the base sequence AGGTCTGA while the other has the base sequence GGTCTGT.