Mendelian and Non Mendelian Inheritance

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What is Mendelian inheritance?

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Mendelian inheritance refers to the patterns of inheritance that are characteristic of organisms that reproduce sexually, based on the principles established by Gregor Mendel. It includes concepts such as dominant and recessive alleles.

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Define phenotype.

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Phenotype is the observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

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Define genotype.

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

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What is incomplete dominance?

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Incomplete dominance is a form of inheritance in which neither allele is completely dominant over the other, resulting in a phenotype that is a blend of the two parental traits.

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What is a Punnett square?

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A Punnett square is a diagram used to predict the outcome of a particular cross or breeding experiment, showing the possible combinations of alleles from the parents.

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What does homozygous mean?

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Homozygous refers to having two identical alleles for a particular gene, such as AA or aa.

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What does heterozygous mean?

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Heterozygous refers to having two different alleles for a particular gene, such as Aa.

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What is the expected phenotypic ratio in a monohybrid cross?

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The expected phenotypic ratio in a monohybrid cross is typically 3:1 for dominant to recessive traits.

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What is the expected genotypic ratio in a monohybrid cross?

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The expected genotypic ratio in a monohybrid cross is 1:2:1 for homozygous dominant, heterozygous, and homozygous recessive genotypes.

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What is a test cross?

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A test cross is a breeding experiment used to determine the genotype of an individual with a dominant phenotype by crossing it with a homozygous recessive individual.