Question

1. record your results in the diagram below. 2. what are the abo blood types of the crime scene collected blood, the victims blood, and the suspects blood?

Explanation:

Step1: Recall blood - typing principle

Blood type is determined by the presence or absence of A and B antigens. If agglutination occurs with anti - A serum only, it's type A; with anti - B serum only, it's type B; with both anti - A and anti - B, it's type AB; and with neither, it's type O.

Step2: Analyze Crime Scene 1 (CS1)

CS1 agglutinates with anti - A serum but not with anti - B serum. So, CS1 is type A.

Step3: Analyze Crime Scene 2 (CS2)

CS2 agglutinates with both anti - A and anti - B serum. So, CS2 is type AB.

Step4: Analyze Suspect AG

AG agglutinates with anti - A serum but not with anti - B serum. So, AG is type A.

Step5: Analyze Suspect EP

EP does not agglutinate with either anti - A or anti - B serum. So, EP is type O.

Step6: Analyze Suspect TD

TD agglutinates with anti - B serum but not with anti - A serum. So, TD is type B.

Step7: Analyze Suspect DH

DH agglutinates with anti - B serum but not with anti - A serum. So, DH is type B.

Step8: Analyze Suspect SG

SG agglutinates with both anti - A and anti - B serum. So, SG is type AB.

Step9: Analyze Suspect EO

EO does not agglutinate with either anti - A or anti - B serum. So, EO is type O.

Answer:

Crime Scene 1 (CS1): Type A
Crime Scene 2 (CS2): Type AB
Suspect AG: Type A
Suspect EP: Type O
Suspect TD: Type B
Suspect DH: Type B
Suspect SG: Type AB
Suspect EO: Type O