Genetics Unit Set 2

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Codominance

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A form of inheritance where both alleles are fully expressed in the phenotype, such as blood type AB.

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Inheritance

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The passing of genetic traits from parents to offspring through DNA.

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Pedigree

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A chart used to trace the inheritance of traits in a family across generations.

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Environmental Factors

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External influences (such as diet, climate, or toxins) that can affect gene expression and traits.

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Blood Type

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A classification system for human blood based on the presence or absence of A and B antigens on red blood cells.

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Rh Factor

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A protein found on red blood cells that determines if blood type is positive (+) or negative (-).

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Carrier

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An individual who has one copy of a recessive allele but does not express the trait in their phenotype.

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Genetic Variation

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Differences in DNA sequences among individuals in a population, leading to different traits.

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Monohybrid Cross

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A genetic cross that examines the inheritance of one specific trait.

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Epigenetics

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The study of how environmental factors can influence gene expression without changing the DNA sequence.