Genetics Terminology Flashcards

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Codominance

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A mode of inheritance where both alleles of a gene are expressed equally and independently in the phenotype.

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Multiple allele

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A single gene may have more than two possible alleles in a population, known as multiple alleles. Ex. Human blood type.

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Allele

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Any of several possible forms of a gene.

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Homozygous

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If an individual has two copies of the same allele, they are homozygous for that gene.

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Heterozygous

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If an individual has two different alleles, they are heterozygous for that gene.

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Phenotype

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The observable trait that results from those alleles.

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Genotype

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An individual's genotype refers to the specific alleles they have for a particular gene.

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Antibody

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Produced by white blood cells, antibodies help protect the body from harmful bacteria and viruses.

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Antigen

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A substance that causes an immune response.