Lesson 1 and 2 Genetics Flashcards

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INHERIT

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to receive something from someone who came before you.

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TRAIT

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a characteristic that varies from one species to another.

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GENE

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A small section of DNA that contains instructions for a specific trait.

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GENETICS

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the study of inheritance.

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Allele

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a different version of a gene.

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Homozygous

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having two of the same alleles for a gene.

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Heterozygous

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having two different alleles for a gene.

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Dominant

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Masks the other trait and the trait that shows if present.

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Recessive

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Only exhibit that trait when the dominant allele is not present or when only both recessive alleles are present.

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Genotype

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The genetic makeup of an organism; The gene (or allele) combination an organism has.