Amplify Traits Study Guide End of Unit

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What is a gene?

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A gene is a segment of DNA that contains the instructions for making a specific protein, which determines traits in an organism.

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How do traits get passed from parents to offspring?

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Traits are passed from parents to offspring through genes, with each parent contributing one copy of each gene.

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What is the role of proteins in determining traits?

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Proteins are responsible for the physical characteristics of an organism, as they perform various functions and determine how traits are expressed.

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What is the difference between dominant and recessive genes?

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Dominant genes can mask the effects of recessive genes, meaning that if a dominant gene is present, its trait will be expressed.

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What does it mean for genes to be homozygous?

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Homozygous means that an organism has two identical copies of a gene for a particular trait.

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What does it mean for genes to be heterozygous?

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Heterozygous means that an organism has two different copies of a gene for a particular trait.

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What is the significance of genetic variation?

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Genetic variation is important for the survival of a species, as it allows for adaptability and evolution over time.

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How do environmental factors influence traits?

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Environmental factors can affect how genes are expressed, leading to variations in traits even among genetically similar organisms.

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What is the relationship between genotype and phenotype?

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Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits that result from the genotype.

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What is inheritance?

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Inheritance is the process by which genetic information is passed from parents to their offspring.

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