Biology Mutations

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What is a mutation?

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A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

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What is a point mutation?

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A point mutation is a change in a single nucleotide in the DNA sequence.

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What is a deletion mutation?

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A deletion mutation occurs when one or more nucleotides are removed from the DNA sequence.

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What is an insertion mutation?

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An insertion mutation occurs when one or more nucleotides are added to the DNA sequence.

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What is a substitution mutation?

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A substitution mutation occurs when one nucleotide is replaced by another in the DNA sequence.

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What is a duplication mutation?

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A duplication mutation occurs when a segment of DNA is copied, resulting in multiple copies of that segment.

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What is an inversion mutation?

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An inversion mutation occurs when a segment of DNA is reversed within the chromosome.

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What is a translocation mutation?

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A translocation mutation occurs when a segment of DNA is moved from one location to another, either within the same chromosome or to a different chromosome.

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What is a nonsense mutation?

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A nonsense mutation is a type of mutation that creates a premature stop codon in the protein sequence, leading to a truncated polypeptide chain.

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What is a missense mutation?

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A missense mutation is a type of mutation that results in a different amino acid being incorporated into the protein, potentially altering its function.