Microbiology: A Systems Approach 4th Edition by Marjorie Kelly Cowan

Exercise 13

Figure 16.10 c. Draw the expected agglutination pattern for auniversal donor blood type.
Figure 16.10 Interpretation of blood typing. In this test, a drop of blood is mixed with a specially prepared antiserum known to contain antibodies against the A, B, or Rh antigens. (c) Several patterns and their interpretations. Anti-A, anti-B, and anti-Rh are shorthand for the antisera applied to the drops. (In general, O+ is the most common blood type, and AB- is the rarest.)