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AP Biology Practice Questions

Category - Biology

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During what process can mutations occur?

I. Transcription
II. Translation
III. Replication
  1. I only
  2. II only
  3. III only
  4. I and II only
  5. I, II, and III only
Explanation
Answer: C, III only. Mutations in DNA are most likely to occur during replication.

Key Takeaway: The replication of DNA is a very error prone process. While there are numerous proofreading and error-checking processes built into replication, unwanted mutations do occur. While mutations do affect the efficiency of transcription and translation, they are unlikely to occur during either process.
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Additional Answers

cass rose says:

just because they're unlikely to occur doesn't mean that they won't though? that's not what the question asked.

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