An allele is best described as the alternative form of a gene.
In genetics or cytology, an allele is one of a number of alternative forms of the same gene occupying a given position, or locus, on a chromosome.
Genes, according to Gregor Mendel, usually comes in pairs e.g. gene coding for height can be denoted by Tt. The allele represent a member of the gene that encodes a particular trait.
Therefore, an allele is best described as the alternative form of a gene.
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