Questions: A person who is blood type A would have lg M hemagglutinin antibodies against type red blood cells in their plasma.
Transcript text: A person who is blood type A would have $\lg M$ hemagglutinin antibodies against type $\qquad$ $\square$ red blood cells in their plasma.
Solution
The answer is: B: B
Explanation:
Blood type A individuals have A antigens on the surface of their red blood cells.
They produce antibodies against the antigens that are not present on their own red blood cells.
Therefore, a person with blood type A will have anti-B antibodies in their plasma.
These antibodies will react against type B red blood cells.
In summary, a person with blood type A would have hemagglutinin antibodies against type B red blood cells in their plasma.