Openscied 8.5 Genetics

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Heredity

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The passing of genetic material from parent to offspring.

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Allele

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A different version of a gene.

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DNA (Deoxyribonucleic Acid)

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The genetic material that carries information about an organism and is passed from parent to offspring.

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Dominant Allele

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An allele whose trait always shows up in the organism when the allele is present.

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Recessive Allele

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An allele that is masked (hidden) when a dominant allele is present.

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Genotype

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The genetic makeup of an organism, representing the alleles inherited from parents.

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Phenotype

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The observable traits or characteristics of an organism, determined by its genotype.

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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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Punnett Square

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A diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles.