In a blood donor tested with Rh antisera, a result of 0 for anti-D, 0 for anti-C, 0 for anti-E, and positive for anti-c and anti-e indicates what Rh genotype?

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In this scenario, the results from testing the blood donor with Rh antisera indicate a specific genotype based on the reactivity or lack of reactivity to certain Rh antigens.

A result of 0 for anti-D means that the donor's blood does not have the D antigen, indicating they are Rh negative. The negative results for both anti-C and anti-E suggest that the donor does not express the C or E antigens either. However, the positive reactions for anti-c and anti-e indicate that the donor does possess the c and e antigens, meaning these are present in the genotype.

The Rh blood group system is quite complex, but it can be summarized as follows: the D antigen is often the primary antigen of interest in determining Rh status, while the Cc and Ee subgroups are variations. Given that the donor is negative for D, C, and E but positive for c and e, the genotype that fits this description is dce/dce. This indicates that both alleles carried by the donor contribute to the small c and e antigens while lacking the larger D, C, and E antigens.

Thus, the selected answer of dce/dce accurately reflects a genotype where the donor is Rh negative and expresses only the