Patterns of Inheritance

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What is the main topic of Patterns of Inheritance?

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The study of how traits are passed from parents to offspring through genes.

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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, such as blood type (A, B, O) in humans.

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What is the genotype of a heterozygous organism?

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A heterozygous organism has two different alleles for a particular gene, represented as Bb.

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What is the expected outcome when two heterozygous rats (Bb) are mated?

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The expected outcome is three different genotypes (BB, Bb, bb) and two different colors (black and white fur).

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What is codominance?

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Codominance occurs when both alleles in a heterozygous organism are fully expressed, resulting in a phenotype that shows both traits.

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What is incomplete dominance?

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Incomplete dominance is when one allele is not completely dominant over the other, resulting in a blended phenotype, such as pink flowers from red and white parents.

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What is the definition of a phenotype?

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A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

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What is a genotype?

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A genotype is the genetic makeup of an organism, represented by the alleles it possesses.

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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.

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What is the difference between dominant and recessive alleles?

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Dominant alleles mask the effect of recessive alleles in a heterozygous genotype.