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having two different alleles for a specific gene

Heterozygous refers to having two different alleles for a specific gene, one inherited from each parent. For example, if a person has one allele for brown hair and one for blonde hair, they are heterozygous for the hair color gene. This genetic variation can influence traits and the likelihood of passing certain characteristics to offspring.

Related Terms

• Homozygous
• Homozygous Mutation
• Autosomal Recessive
• Autosomal Dominant Inheritance
• Phenotype B
• Autosomal Dominant Disorder
• Autosomal Recessive Disorder
• allele