BLOOD TYPING LAB

Shared Materials:

1. Simulated Blood Samples
   1. Bennett
   2. Batey
   3. Robertson
   4. Parris
   5. Bain
   6. Morris
2. Unknown crime scene blood samples
   
   
3. • Anti-A Simulated Typing Serum
   • Anti-B Simulated Typing Serum
   • Anti-Rh Simulated Typing Serum

Objective:

Each team will determine and compare the blood type for known and unknown samples of blood. Identify three suspects whose blood was found at the crime scene

Procedure:

1. Pre-label each of your six blood typing slides as follows:
   • Slide #1: Bennett
   • Slide #2: Batey
   • Slide #3: Robertson
   • Slide #4: Parris
   • Slide #5: Bain
   • Slide #6: Morris
   
   
   
2. Place two drops of each known blood type in a separate well-marked A,B and Rh on each slide.
   1. Add 2 drops of the simulated anti-A serum in each A well on the slides.
   2. Add 2 drops of the simulated anti-B serum in each B well on the slides.
   3. Add 2 drops of the simulated anti-Rh serum in each Rh well on the slides.
   
   
   
3. Use separate toothpicks to stir each sample of serum and blood. Record your observations and results on data table 1. Repeat the procedure for the unknown crime samples. Record on table 2.

Data Table 2 Agglutination Reactions: Unknown Samples
	Anti-A Serum	Anti-B Serum	Anti-Rh Serum	Blood Type	Observations
Sample # 1 Sample # 2 Sample # 3

ANALYSIS:

Determine the origin of the unknown blood types found at the crime scene. Record your observations .

SAMPLE # 1 matches with the known blood sample of _______________________.

SAMPLE # 2 matches with the known blood sample of _______________________.

SAMPLE # 3 matches with the known blood sample of _______________________.

Identify notable characteristics of blood stained fibers removed from the crime scene. Using a microscope, sketch the weave pattern identifiying each as twill, satin or knitted.

Sample 1 Identification of pattern:	Drawing:
Sample 2: Identification of pattern:	Drawing:
Sample 3: Identification of pattern:	Drawing:

Sample 1 belongs to:_____________

Sample 2 belongs to:_____________

Sample 3 belongs to:_____________

Index

• The Crime
• Modus Operandi Worksheet
• Unknown Powder Lab and Hair Lab
• Gel Electrophoresis Lab
• Writing Assignment
• Credits
• Home

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