Individuals with the O Blood Group Are Known as Universal

Multiple Choice

Individuals with the O blood group are known as universal donors because the Gal and GlcNAc groups that are recognized by the antibodies in A,B,and AB in other individuals are missing.Which of which of the following types of erythrocyte plasma membrane components lacks these GlcNAc groups?

A) a glycoprotein
B) a glycolipid
C) glycophorin
D) a GPI-anchored protein
E) a glycocalyx protein