Blood Types

Which of these is NOT a human blood type?

• A-

• D-

• O-

• B-

Which of your body cells carries proteins that determine your blood type?

• Your red blood cells

• Your white blood cells

• Your skin cells

• All of the above

Using the key, determine which of these cells represents the blood type AB-.

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• 
• 
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Which blood type is the most common? (In other words, more people are this blood type than any other type)

• O+

• A+

• B+

• AB+

Blood type is _____________ evidence.

• direct evidence

• individual evidence

• unsure evidence

• class evidence

You are a CSI seeking to determine the blood type of a sample. You mix a drop of the blood sample with Anti-A serum. The blood does NOT clump. This means that...

• The blood type is A+

• There are no proteins in the blood sample

• The blood does not have A proteins in it

• The blood has A proteins in it

You are a CSI seeking to determine the blood type of a sample. The blood clumps with Anti-A serum, it clumps with Anti-B, and it clumps with Anti-D (Rh) serum. What blood type is this sample?

• O+

• AB+

• B+

• A+

What blood type is this?

• A+

• B+

• AB+

• O+

Drops of blood found at a crime scene are determined to be O+. The victim is O+. Which of these statements is TRUE?

• the drops must be from the victim

• the drops could be from the suspect

• the drops must be from the suspect

• this evidence is not helpful to the investigation

Drops of blood found at a crime scene are determined to be type A+. The victim is type O+. The suspect, Greg Shadow, is type A+.  Which of these statements is TRUE?

• The drops must be from Greg Shadow

• Greg Shadow is guilty of murder

• The drops can not be from the victim

• This evidence is not helpful to the investigation