A blood sample with two blood drops is shown. Anti-serum have to be added to identify the blood groups. Click on "Add Anti-A" to add anti-A sera on the first blood drop. Observe whether it shows the occurrence of agglutination or nothing.

Similarly click on "Add Anti-B" to add anti-B sera on the second blood drop and observe.

Now enter the "Identified blood group" in the text box according to the following table.

Submit to check and try another sample.

Repeat the above steps.