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I want to know about gene and allele As we know allele is pair of genes they are ;present on only one chromosome or on homologous chromosomes? Or its like that;one chromosome has only one gene out of an allele and other homologous chromosome has another gene from the same allele?please clear this

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An allele is a variant form of a gene.

You can obtain a more detailed explanation of alleles using Encyclopaedia Brittanica.

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