Phosphodiester bond is:
Correct answer: B. C-O-P-O-C
- A. P-O-C-P-O-C
- B. C-O-P-O-C
- C. C-O-P
- D. C-C-O-P
Explanation
The correct answer is Option B: C-O-P-O-C. A phosphodiester bond forms the backbone of DNA and RNA molecules by linking the 5' carbon of one sugar molecule to the 3' carbon of the next sugar, with a phosphate group in between. This bond is crucial for the structural integrity of nucleic acids. Option A is incorrect as it suggests a direct linkage between phosphorus atoms and carbons that does not exist in phosphodiester bonds. Option C is partially correct but incomplete, as it fails to demonstrate the full linkage across two sugar molecules. Option D incorrectly suggests a carbon-carbon linkage, which is not a feature of phosphodiester bonds.
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