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Lab: Using Blood Tests To Identify Criminals And Babies - Anatomy And Physiology Worksheet Page 3

5. Test your understanding of blood groups by completing the table below.

Antigens on red

Antibodies in

Can receive

Can give

Blood Group

blood cells

plasma

blood from

blood to

Anti-B

A and O

A and AB

A and B

None

6. Which blood type would be considered a universal donor (someone who can give blood to

anyone)? ____________________________

Part 2. Who Killed Shamari Davis?

Background: Shamari Davis (Sample #1) was a 20-year-old college freshman who was

majoring in Physical Therapy. She paid for school by working as a personal trainer at a local

gym. Shamari had been promoted to head personal trainer at the gym just before she was

killed.

Crime Scene: The body was found in the women’s locker room of the gym at 1 am by the night

janitor, Mr. Green . The victim had been strangled and was wearing a robe. There were signs

of a struggle in the room and the glass door of the shower was broken and the shower curtain

had traces of blood on it. The victim was pronounced dead at the scene and the coroner

suggested that the time of death was at least 3 hours before the body was found.

Criminal Investigation: Shamari’s co-worker Ms Brown told police that Shamari was a newer

employee who did not deserve her recent promotion and only got it because she spent a lot of

time with their boss, Steve O’Hare (sample #4) When asked if he knew if Shamari had

problems at work, Steve told Police that Shamari had complained to him that one of her fitness

clients, Mike Reed (sample #3) , kept asking her out and wouldn’t take no for an answer.

Blood Analysis: Obviously a real crime investigation would use many clues, but your

investigation will be based on the simplest type of blood testing, namely testing for blood types

A, B, O, and AB, for the blood sample found at the scene and for each of the possible suspects.

7. No individual can change their blood type, and blood type does not change with age. Explain

why here:

Lab: Using Blood Tests To Identify Criminals And Babies - Anatomy And Physiology Worksheet Page 3