Biology Mutations

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What is a mutation?

Back

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

Front

What are the main types of mutations?

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The main types of mutations are substitution, deletion, and insertion mutations.

Front

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 deletion mutation?

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

Front

What is an insertion mutation?

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

Front

What is the role of mutations in evolution?

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

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What is progeria?

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Progeria is a rare genetic disorder that causes rapid aging in children.

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How can environmental factors cause mutations?

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Environmental factors such as radiation, chemicals, and viruses can damage DNA and lead to mutations.

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What is the significance of mutations in a species' survival?

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Mutations can provide new traits that may help a species adapt to changing environments.

Front

What is the difference between somatic and germline mutations?

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Somatic mutations occur in non-reproductive cells and are not passed to offspring, while germline mutations occur in reproductive cells and can be inherited.