DNA Mutations

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What is a DNA mutation?

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A DNA mutation is a change in the nucleotide sequence of an organism's DNA, which can lead to changes in the structure and function of proteins.

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What is a frameshift mutation?

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A frameshift mutation occurs when bases are added or deleted from the DNA sequence, causing a shift in the reading frame of the genetic code.

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What is a substitution mutation?

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A substitution mutation is a type of mutation where one base pair in the DNA sequence is replaced by another base pair.

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What is a nonsense mutation?

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A nonsense mutation is a type of substitution mutation that results in a premature stop codon, leading to a truncated protein.

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What is a missense mutation?

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A missense mutation is a substitution mutation that results in a different amino acid being incorporated into a protein.

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What is a silent mutation?

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A silent mutation is a change in the DNA sequence that does not alter the amino acid sequence of the protein.

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What are insertions in DNA mutations?

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Insertions are mutations where one or more nucleotide bases are added to the DNA sequence.

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What are deletions in DNA mutations?

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Deletions are mutations where one or more nucleotide bases are removed from the DNA sequence.

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What is the effect of a frameshift mutation?

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Frameshift mutations can lead to significant changes in the protein produced, often resulting in nonfunctional proteins.

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What is an example of a harmful mutation?

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Developing cancer is an example of a harmful mutation that can negatively affect an organism's health.