DNA Mutations

Front

What is a DNA mutation?

Back

A change in the nucleotide sequence of DNA.

Front

What are the main types of DNA mutations?

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1. Substitution 2. Insertion 3. Deletion 4. Frameshift

Front

What is a substitution mutation?

Back

A mutation where one nucleotide is replaced by another.

Front

What is an insertion mutation?

Back

A mutation where one or more nucleotides are added to the DNA sequence.

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What is a deletion mutation?

Back

A mutation where one or more nucleotides are removed from the DNA sequence.

Front

What is a frameshift mutation?

Back

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

Front

What is a silent mutation?

Back

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

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What is a missense mutation?

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

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What is a nonsense mutation?

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A substitution mutation that creates a premature stop codon in the protein sequence.

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What is the impact of a frameshift mutation?

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It can lead to significant changes in the protein produced, often resulting in loss of function.