Jane Has Type a Blood; Therefore, She

Question

Jane has Type A blood; therefore, she
A) has antibodies to B agglutinogens.
B) can give blood to other people with Type A blood only.
C) can receive blood from other people with Type A blood only.
D) makes anti-A without ever having been exposed to Type A blood.
E) has B antigen on her RBCs.

Accepted Answer

Individuals with Type A blood have A antigens on their red blood cells and produce antibodies to B antigens without ever being exposed to them, making option A the correct choice. They can receive blood from individuals with Type A or Type O blood, but not from individuals with Type B or Type AB blood. They can donate blood to individuals with Type A or Type AB blood. Option B and C are incorrect because individuals with Type A blood can donate to other individuals with Type A or Type AB blood, and can receive blood from individuals with Type A or Type O blood. Option D is incorrect because individuals with Type A blood do not make anti-A antibodies. Option E is incorrect because individuals with Type A blood do not have B antigens on their red blood cells.