Question

what is alleles in biology

Answer 1

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An allele is one of the possible forms of a gene. Most genes have two alleles, a dominant alleleand a recessive allele. If an organism is heterozygous for that trait, or possesses one of each allele, then the dominant trait is expressed. ...

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Answer 2

Genes which codes for a pair of contrasting traits are called alleles.

And these are the slightly different forms of gene.

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