Multiple choice Which of the following are a pair of epimers? Glucose and fructose Glucose and mannose Sorbose and fructose Allose and mannose Fructose and galactose Reveal answer Fill a bubble to check yourself B Correct answer Explanation When two sugars differ only in the configuration around one carbon atom, they are called epimers of each other; D-glucose and D-mannose, which differ only in the stereochemistry at C-2, are epimers.