Biology 30s
Blood & Immunity
Blood Type Testing
How do we test for blood type?
 Antiserum is a solution that contains antibodies against a specific antigen (i.e.
antiserum A contains Anti-A antibodies).
 Blood type is determined by adding antiserum A, B and D/Rh to a blood
sample and observing whether or not agglutination occurs.
 If the blood sample remains uniform in appearance, there is no
agglutination /clumping (negative test result).
 If the sample appears granular, agglutination (positive test result) has
occurred.
Examples.
Biology 30s
Blood & Immunity
Blood Type Testing: Your Turn
For each of the rows below, determine which blood type is represented. How
do you know?
Part A:
Part B: