D-glucose and D-mannose are epimers. Differ in configuration at:

Question

Accepted Answer

C. C2 only (epimers differ at exactly one chiral center)

**Epimers:** stereoisomers differing at exactly one chiral center.
D-glucose and D-mannose differ only at C2 (one is R, other S).
D-glucose and D-galactose are C4 epimers.
Important in biosynthesis (epimerases interconvert).

Answer

C1

Answer

All centers

Answer

C5

D-glucose and D-mannose are epimers. Differ in configuration at:

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