A mutation is

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Study for the 9th Grade Biology SOL Test. Prepare with flashcards and multiple choice questions, each featuring hints and explanations. Get ready for your exam!

Multiple Choice

A mutation is

Explanation:
Mutations are changes in the DNA sequence that store genetic information. When a gene’s DNA is damaged or altered, the message it carries can change, which can lead to a different protein being made or the protein being made incorrectly. This is the source of genetic variation and can affect traits, sometimes with noticeable effects and sometimes with none at all. The other options describe non-genetic changes or population-level patterns, not a change in the gene’s DNA sequence.

Mutations are changes in the DNA sequence that store genetic information. When a gene’s DNA is damaged or altered, the message it carries can change, which can lead to a different protein being made or the protein being made incorrectly. This is the source of genetic variation and can affect traits, sometimes with noticeable effects and sometimes with none at all. The other options describe non-genetic changes or population-level patterns, not a change in the gene’s DNA sequence.

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