Which of the following is a characteristic of the Lewis blood group system?

A It is a protein-based blood group system
B It is a carbohydrate-based blood group system ✓
C It is inherited in an autosomal dominant pattern
D It is not clinically significant in blood transfusion

Explanation

The Lewis blood group system is a carbohydrate-based blood group system, which means that the antigens are composed of carbohydrates rather than proteins.

Source

Transfusion Medicine textbook
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Medium MEDICAL Confidence: high