Mutations

Front

What is a mutation?

Back

Any change in the sequence of DNA.

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What is a point mutation?

Back

A mutation that affects a single nucleotide in the DNA sequence.

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What is an insertion mutation?

Back

A type of point mutation where one extra base pair is added into a sequence of DNA.

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What is a deletion mutation?

Back

A type of point mutation where one or more base pairs are removed from a DNA sequence.

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What is a substitution mutation?

Back

A type of point mutation where one base pair is replaced by another base pair.

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What is a frameshift mutation?

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A mutation that shifts the reading frame of the genetic message, often caused by insertions or deletions.

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What is a silent mutation?

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A mutation that does not change the amino acid sequence of a protein.

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What is translocation in genetics?

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A mutation where a segment of DNA is moved from one location to another within the genome.

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Example of a substitution mutation: T-G-A-C-C-A to T-G-A-G-C-A. What mutation occurred?

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Substitution.

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Example of an insertion mutation: Original: ATC CAT, Mutation: ATC GCAT. What mutation occurred?

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Insertion.