Heredity & Genetics

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What is heredity?

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Heredity is the passing of traits from parents to offspring through genes.

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What is a gene?

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A gene is a segment of DNA that contains the instructions for a specific trait.

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What is a dominant trait?

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A dominant trait is a characteristic that is expressed when at least one dominant allele is present.

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What is a recessive trait?

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A recessive trait is a characteristic that is expressed only when two recessive alleles are present.

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What does genotype mean?

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Genotype refers to the genetic makeup of an organism, represented by alleles.

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What does phenotype mean?

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Phenotype refers to the observable physical traits of an organism.

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What is the difference between homozygous and heterozygous?

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Homozygous means having two identical alleles for a trait, while heterozygous means having two different alleles.

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What are acquired traits?

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Acquired traits are characteristics that are learned or developed through experience, not inherited.

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What are inherited traits?

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Inherited traits are characteristics that are passed down from parents to offspring through genes.

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What is a Punnett square?

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A Punnett square is a diagram used to predict the genetic outcomes of a cross between two organisms.