How Is the En^a Antigen Related to the Wr(a-B-) Phenotype

question 55

Multiple Choice

How is the En^a antigen related to the Wr(a-b-) phenotype?

• A) En(a-) red blood cells are all Wr(a-b-)
• B) En(a+) red blood cells are all Wr(a-b-)
• C) All Wr(a-b-) red blood cells are also M-N-
• D) En(a-) individuals lack MN-SGP

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