What is the role of the H antigen in the ABO blood group system?
A
It is the precursor to the A and B antigens
✓
B
It is an enzyme that breaks down A and B antigens
C
It is a protein that inhibits the expression of A and B antigens
D
It is a carbohydrate that enhances the expression of A and B antigens
Explanation
The H antigen is the precursor to the A and B antigens in the ABO blood group system. It is modified by enzymes to produce the A and B antigens.
Source
Medical Microbiology by Jawetz
Hematology
Hematology: Blood Grouping and Crossmatching
Hematology: Blood Grouping and Crossmatching
Medium
MEDICAL
Confidence: high
