Unit 6 Heredity Genetics Vocab Review

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Allele

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One member of a pair or series of genes on specific chromosomes in specific positions.

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Gene

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The basic unit of heredity in a living organism; a segment of DNA or RNA.

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Phenotype

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The observable traits of an organism passed on from parent to offspring.

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Dominant Allele

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An allele that is fully expressed in the phenotype of a heterozygote.

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Heredity

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The passing of traits from parent to offspring.

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Recessive Allele

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An allele that is not fully expressed in the phenotype of a heterozygote.

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Homozygous

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Having two identical alleles for a particular gene.

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Heterozygous

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Having two different alleles for a particular gene.

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Genotype

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The genetic makeup of an organism; the combination of alleles.

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Punnett Square

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A diagram used to predict the outcome of a genetic cross.