What term denotes having two identical alleles for a gene?

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Multiple Choice

What term denotes having two identical alleles for a gene?

Explanation:
Having two identical alleles for a gene is called homozygosity. In a genotype, this means both copies of the gene are the same allele, such as AA or aa. This contrasts with heterozygosity, where the two gene copies are different (Aa). A carrier is typically a heterozygote for a recessive trait, carrying one normal and one disease-associated allele and often not showing symptoms. Codominance refers to a situation where both alleles in a heterozygote are expressed in the phenotype, as seen with AB blood type.

Having two identical alleles for a gene is called homozygosity. In a genotype, this means both copies of the gene are the same allele, such as AA or aa. This contrasts with heterozygosity, where the two gene copies are different (Aa). A carrier is typically a heterozygote for a recessive trait, carrying one normal and one disease-associated allele and often not showing symptoms. Codominance refers to a situation where both alleles in a heterozygote are expressed in the phenotype, as seen with AB blood type.

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