Does the Duffy Positive Blood Type FY(A-B+) Phenotype mean a person can be Mixed Race?
Does the Duffy Positive Blood type FY(A-B+) Phenotype mean a person can be 75% White and 25% African ancestry, such as, a Quadroon? Does it mean an African-American with the Duffy Positive Blood Type FY(A-B+) Phenotype is Marjority White Ancestry (75% White and 25% African ancestry)?
by 
tami3761
ANSWERS: 2
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African Americans are usually Duffy A and Duffy B negative. (A-B-). But you can't go by one antigen to determine race.
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African Americans are usually Duffy A and Duffy B negative. (A-B-). But you can't go by one antigen to determine race.
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