Which of the four labeled bonds in Figure 1 could be broken to remove and replace the cytosine nucleotide without affecting the biological information coded in the DNA molecule?
Understand the Problem
The question is asking which specific bond(s) in the DNA structure can be broken and replaced without altering the genetic information coded in the DNA. It requires an understanding of the roles of different bonds within the DNA structure, specifically in the context of DNA damage and repair mechanisms.
Answer
Bonds Y and Z at the same time
The final answer is Bonds Y and Z at the same time.
Answer for screen readers
The final answer is Bonds Y and Z at the same time.
More Information
Breaking bonds Y and Z allows for the removal and replacement of the cytosine nucleotide without damaging the overall structure or altering the information encoded in the DNA sequence.
Tips
A common mistake is to break bonds that involve the phosphate backbone (such as bonds W or X) which would disturb the integrity of the DNA strand and its coded information.
Sources
- Quizlet Unit 1 Progress Check - quizlet.com
- Course Hero Unit 1 - Chemistry of Life - coursehero.com
- Knowt AP Bio Flashcards - knowt.com
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