Inheritance Patterns

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What is Codominance?

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A genetic inheritance pattern where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

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What is Incomplete Dominance?

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A genetic inheritance pattern where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

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What is Dominant / Recessive Inheritance?

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A genetic inheritance pattern where one allele (dominant) masks the effect of another allele (recessive) in a heterozygote.

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Example of Codominance in animals?

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In certain breeds of cattle, a red cow (RR) crossed with a white cow (WW) produces offspring with both red and white patches (RW).

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Example of Incomplete Dominance in plants?

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In snapdragons, crossing a red flowered plant (RR) with a white flowered plant (WW) results in pink flowers (RW).

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What is the inheritance pattern for human eye color?

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Human eye color is primarily determined by a dominant/recessive inheritance pattern.

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What is the phenotype of a plant with genotype RW in incomplete dominance?

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The phenotype would be an intermediate color, such as pink, between the two parent colors.

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What does a Punnett square illustrate?

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A Punnett square is a diagram used to predict the outcome of a genetic cross by showing the possible allele combinations from the parents.

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What is the significance of the F1 generation?

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The F1 generation is the first filial generation, which is the result of a cross between two parental (P) generations.

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What is the F2 generation?

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The F2 generation is the second filial generation, produced by crossing two F1 individuals.