Mutations 2022

Front

What is a mutation?

Back

A mutation is any change in the sequence of DNA.

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What is a nonsense mutation?

Back

A nonsense mutation is a change in one DNA triplet that results in a new triplet that codes for a stop codon instead of an amino acid.

Front

What is a silent mutation?

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A silent mutation is a type of substitution in which no amino acids change.

Front

Where is DNA usually found in a cell?

Back

DNA is usually found in the nucleus.

Front

What does a mutation change in an organism?

Back

A mutation is a change in an organism's DNA.

Front

What is a missense mutation?

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

Front

What is a frameshift mutation?

Back

A frameshift mutation occurs when nucleotides are added or deleted from the DNA sequence, altering the reading frame.

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What are the types of mutations?

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The main types of mutations are point mutations (substitutions), insertions, and deletions.

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What is the role of the nucleus in relation to DNA?

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The nucleus houses the cell's DNA and is the site of transcription.

Front

What is the significance of mutations in evolution?

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Mutations introduce genetic variation, which is essential for evolution and natural selection.