What components make up the backbone of a DNA molecule?
Understand the Problem
The question is asking which components form the backbone of a DNA molecule. The options include different combinations of nitrogenous bases and structural components of DNA, indicating a need to identify the correct pairing related to DNA's structure.
Answer
Deoxyribose and phosphate groups
The final answer is deoxyribose and phosphate groups.
Answer for screen readers
The final answer is deoxyribose and phosphate groups.
More Information
The DNA backbone is made of repeating units of deoxyribose sugar and phosphate groups connected by phosphodiester bonds.
Tips
Common mistake is confusing the backbone with the nitrogenous bases (purines and pyrimidines) which make up the 'rungs' of the DNA ladder.
Sources
- What forms the backbone of the DNA molecule? - Socratic - socratic.org
- Phosphate Backbone - National Human Genome Research Institute - genome.gov
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