What is Allele _ It’s Meaning and Definition One member of a pair (or any of the series).<\/p>\n
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Definition:<\/strong> An allele<\/strong> is a variant form of a gene<\/strong>. For example, a gene for eye color may have different alleles such as one for brown eyes and another for blue eyes.<\/p>\n Each organism typically has two alleles per gene<\/strong>.<\/p>\n<\/li>\n If the alleles are the same<\/strong> (e.g., AA or aa), the individual is homozygous<\/strong>.<\/p>\n<\/li>\n If the alleles are different<\/strong> (e.g., Aa), the individual is heterozygous<\/strong>.<\/p>\n<\/li>\n Dominant allele<\/strong>: Expresses its trait even if only one copy is present.<\/p>\n<\/li>\n Recessive allele<\/strong>: Expresses its trait only if both copies are recessive.<\/p>\n<\/li>\n<\/ul>\n For a gene that controls flower color<\/strong>:<\/p>\n Allele R<\/strong> = Red (dominant)<\/p>\n<\/li>\n Allele r<\/strong> = White (recessive)<\/p>\n<\/li>\n<\/ul>\n
An allele<\/strong> is one of two or more versions of a gene<\/strong>. Each individual inherits two alleles<\/strong> for each gene, one from each parent<\/strong>. Alleles are found at the same position (locus)<\/strong> on homologous chromosomes.<\/p>\n
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