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 bond labeled W, X, Y, or Z in the DNA molecule can be broken to replace a damaged cytosine nucleotide without affecting the genetic information. It involves understanding the structure of DNA and how bonds are related to nucleotide replacement.
Answer
C: Bonds Y and Z
The final answer is C: Bonds Y and Z at the same time.
Answer for screen readers
The final answer is C: Bonds Y and Z at the same time.
More Information
To remove and replace a cytosine nucleotide without altering the DNA's biological information, bonds Y and Z, which likely connect the sugar-phosphate backbone to the nucleotide, must be broken.
Tips
A common mistake might be choosing bonds that do not directly link to the nucleotide in question, thus failing to correctly remove and reattach it.
Sources
- Unit 1 - Chemistry of Life | 62 plays - Quizizz - quizizz.com
- Unit 1 Progress Check MCQ | Quizlet - quizlet.com
- Figure 1 represents a segment of DNA. Radiation can damage the ... - StudyFetch - studyfetch.com