🤔Carla expresses the blood group antigens Fya, Fyb, and Xga. James shows expressions of none of these antigens. What factor(s) may account for the absence of these antigens in James?
💭This is what I would be thinking about when attempting to answer this question:
- What are the keywords?
- What is a key difference between Carla and James?
- How and why are the Duffy's significant in this case?
- How and why is Xga significant in this case?
- Do I know my blood group systems and their prevelance/significance?
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