QQuestionBiology
QuestionBiology
Ribose and deoxyribose are both found in nucleic acids. The difference between ribose and deoxyribose is that:
A. Deoxyribose has one less oxygen atom.
B. Deoxyribose is found in DNA, whereas ribose is found in RNA.
C. Ribose is a pentose sugar, whereas deoxyribose is a hexose sugar.
D. Both A and B are true.
E. All of the above are true.
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Answer
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Step 1:Let's solve this step by step:
Step 2:: Understand the Chemical Structure
Ribose and deoxyribose are both pentose sugars (5 -carbon sugars) with a slightly different chemical structure.
Step 3:: Examine the Oxygen Difference
\text{Ribose has the molecular formula } \mathrm{C}_{5}\mathrm{H}_{10}\mathrm{O}_{5}
\text{Deoxyribose has the molecular formula } \mathrm{C}_{5}\mathrm{H}_{10}\mathrm{O}_{4} The key difference is that deoxyribose has one less oxygen atom compared to ribose, specifically at the 2' carbon position.
Step 4:: Analyze Nucleic Acid Locations
- Ribose is the sugar found in RNA (Ribonucleic Acid) - Deoxyribose is the sugar found in DNA (Deoxyribonucleic Acid)
Step 5:: Evaluate Sugar Classification
Both ribose and deoxyribose are pentose sugars, NOT hexose sugars.
Step 6:: Determine the Correct Answer
Statements A and B are both true: - Deoxyribose has one less oxygen atom - Deoxyribose is found in DNA, whereas ribose is found in RNA
Final Answer
Both A and B are true. The key points are: 1. Deoxyribose has one less oxygen atom than ribose 2. Deoxyribose is the sugar in DNA, ribose is the sugar in RNA 3. Both are pentose sugars
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