Mutations Review

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What is a mutation?

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A mutation is a change in the DNA sequence of an organism's genome.

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What is a deletion mutation?

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A deletion mutation occurs when a section of DNA is removed or lost.

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What is a substitution mutation?

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

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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 are the effects of mutations on proteins?

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Mutations can lead to changes in the amino acid sequence of proteins, potentially altering their function.

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What is the difference between a point mutation and a frameshift mutation?

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A point mutation involves a change in a single nucleotide, while a frameshift mutation involves the insertion or deletion of nucleotides that shifts the reading frame.

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What is a chromosomal mutation?

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A chromosomal mutation involves changes in the structure or number of chromosomes.

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What is the significance of mutations in evolution?

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Mutations are a source of genetic variation, which is essential for evolution and natural selection.