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 codominance, incomplete dominance, multiple alleles, and polygenic 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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Give an example of Codominance.

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An example of codominance is the AB blood type, where both A and B alleles are expressed equally.

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What is a Pedigree?

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A pedigree is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors.

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What is the purpose of using Pedigrees?

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Pedigrees are used to track traits in families and to make determinations about the inheritance of genetic conditions.

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What is the probability of a child having type O blood if both parents have type AB blood?

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0% - Type O blood requires two O alleles, which cannot be produced by two AB parents.

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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 to offspring.

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What percentage of female offspring will be carriers for a recessive disease if the father is affected and the mother is a carrier?

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50% - Female offspring have a 50% chance of inheriting the carrier allele from their mother.

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What genotype corresponds to type AB blood?

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The genotype for type AB blood is AB, meaning both A and B alleles are present.

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What is Incomplete Dominance?

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Incomplete dominance is a genetic situation where one allele does not completely dominate another, resulting in a blended phenotype.