Based on genetic evidence, whose blood should potentially be eliminated from the list of donors?

The choice of eliminating Fifi's blood from the list of donors is likely based on genetic evidence suggesting that Fifi carries a genetic marker or trait that could pose a risk in transfusion scenarios. This could be due to various reasons such as the presence of certain antigens that could cause an adverse reaction in recipients, or the potential for transmitting a hereditary condition or disease through the blood.

In blood donation, safety is paramount. Donors are carefully screened for specific genetic traits and health conditions. If Fifi's blood shows indicators that are incompatible with the majority of the population or that have a known history of complications in transfusion, it is prudent to exclude it.

In contrast, the blood from Malik, Jojo, and Ami likely did not show such concerning genetic markers, making them safer options for donation. Thus, they remain as potential donors while Fifi's situation necessitates further investigation or exclusion due to these genetic concerns.