"Allele" is the word that we use to describe the alternative form or versions of a gene.
The term allele denotes the variant of a given gene. In genetics it is normal for genes to show deviations or diversity − all alleles collectively make up the set of genetic information that defines a gene. as instance, the ABO blood grouping is managed by the ABO gene, which has six common variants.
An allele is one of or more versions of a DNA sequence (a single base or a segment of bases) at a given genomic location. An individual inherits two alleles, one from each parent, for any given genomic location where such variation exists. If the 2 alleles are equal, the individual is homozygous for that allele.
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