This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
The Duffy antigen is associated with 
Select and explain. 
A. Pl. falciparum, B. Pl. ovale, C. Pl. vivax, D. Pl. malariae
C: Pl. vivax
Answer: C: Pl. vivax 
Explanation: Duffy blood group antigen (alleles Fya and Fyb) is the receptor for the attachment of merozoites of Plasmodium vivax. Its absence confers protection against merozoite invasion.Ref: K.D Chatterjee 13th edition, p97-100