Heredity: Complete, Incomplete & Codominance

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What is heredity?

Back

Heredity is the passing of traits from parents to offspring through genes.

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Define dominant allele.

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A dominant allele is an allele that expresses its trait even when only one copy is present in the genotype.

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Define recessive allele.

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A recessive allele is an allele that only expresses its trait when two copies are present in the genotype.

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What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses.

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What is a phenotype?

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A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

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What does homozygous mean?

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Homozygous refers to having two identical alleles for a particular gene.

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What does heterozygous mean?

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Heterozygous refers to having two different alleles for a particular gene.

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What is an allele?

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An allele is a variant form of a gene that can produce different traits.

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What is codominance?

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Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

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What is incomplete dominance?

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Incomplete dominance is a genetic scenario where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.