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, and polygenic inheritance.

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What is Incomplete Dominance?

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Incomplete dominance is a genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype that is a blend of the two 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 offspring with a phenotype that is neither dominant nor recessive.

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Define Phenotype.

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Phenotype is the physical expression of a trait, influenced by an organism's genotype and environmental factors.

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Define Genotype.

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Genotype is the genetic constitution of an individual, representing the alleles inherited from the parents.

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What is the relationship between genotype and phenotype?

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The genotype determines the potential traits of an organism, while the phenotype is the actual expression of those traits influenced by the environment.

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What is an example of Incomplete Dominance?

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An example of incomplete dominance is a flower that is red (RR) crossed with a white flower (WW) producing pink flowers (RW).

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What is an example of Codominance?

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

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What is Polygenic Inheritance?

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Polygenic inheritance is a type of inheritance where multiple genes influence a single trait, such as skin color or height.

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What does it mean when we say 'Most real-world characteristics are influenced by both genotype and environment'?

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It means that while genetic makeup provides the potential for certain traits, environmental factors can significantly affect how those traits are expressed.

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