Non-Mendelian Genetics

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What is Non-Mendelian Genetics?

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Non-Mendelian Genetics refers to patterns of inheritance that do not follow Mendel's laws of inheritance, including incomplete dominance, codominance, multiple alleles, and polygenic traits.

Tags

NGSS.HS-LS3-2

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What is a pedigree chart?

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A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors, used to analyze the inheritance of traits.

Tags

NGSS.HS-LS3-1

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What does it mean if a trait is dominant?

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A dominant trait is one that is expressed in the phenotype even when only one copy of the allele is present.

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What does it mean if a trait is recessive?

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A recessive trait is one that is expressed in the phenotype only when two copies of the allele are present.

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What is incomplete dominance?

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Incomplete dominance is a form of inheritance where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

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What is codominance?

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Codominance is a form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits.

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What are multiple alleles?

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Multiple alleles refer to the presence of more than two alleles for a genetic trait within a population.

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What is a carrier in genetics?

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A carrier is an individual who has one copy of a recessive allele that does not manifest in the phenotype but can be passed on to offspring.

Tags

NGSS.HS-LS3-2

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What does a filled circle represent in a pedigree chart?

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A filled circle represents an affected female in a pedigree chart.

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What does a filled square represent in a pedigree chart?

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A filled square represents an affected male in a pedigree chart.