A person is genotypically blood type A. However, this individual also does not produce the lipid to which N- acetylgalactosamine is added, and is therefore not expressed on the surface of erythrocytes. This situation is known as the Bombay phenotype. When tested, this person will appear to be blood type
A)B.
B)AB.
C)A.
D)O.

Question

Quizplus · Accepted Answer

The Bombay phenotype is a rare condition where individuals do not express the H antigen, which is a precursor for A and B antigens. As a result, even if they have the genotype for blood type A or B, they will not express these antigens and will appear as blood type O in tests.

A Person Is Genotypically Blood Type A