Which antibodies are present in type AB blood?

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Multiple Choice

Which antibodies are present in type AB blood?

In the ABO system, you form antibodies against the A or B antigens you don’t have on your own red blood cells. Type AB individuals express both A and B antigens, so their immune system does not produce anti-A or anti-B antibodies. Therefore, their plasma contains neither anti-A nor anti-B antibodies. This is why the correct statement is that AB blood has no anti-A or anti-B antibodies. The other options would imply the presence of antibodies that would target A or B antigens, which AB blood does not have.

In the ABO system, you form antibodies against the A or B antigens you don’t have on your own red blood cells. Type AB individuals express both A and B antigens, so their immune system does not produce anti-A or anti-B antibodies. Therefore, their plasma contains neither anti-A nor anti-B antibodies. This is why the correct statement is that AB blood has no anti-A or anti-B antibodies. The other options would imply the presence of antibodies that would target A or B antigens, which AB blood does not have.

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