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The carbohydrate “Ribose” present in DNA, is A. a pentose sugar B. present in pyranose from C. in “D” configuration D. a reducing sugar, when free E. in α-anomeric form Choose the correct answer from the options given below :

1. A, C and D Only
2. A, B and E Only
3. B, D and E Only
4. A, D and E Only

Correct answer: A, D and E Only

Solution

Ribose is a pentose sugar, meaning it has five carbon atoms, and it is classified as a reducing sugar when in its free form because it can donate electrons. Additionally, ribose can exist in an α-anomeric form, which is relevant to its structure in nucleotides.

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