Blood Type Concept Map Teacher’s Notes
Blood is made of
Red Blood Cells
White Blood Cells
Platelets
Plasma
its function is to
which contain
which contains
which contains
transport oxygen
throughout your body
your immune system
the clotting factor
vitamins, electrolytes,
nutrients & hormones
There are different blood types
Blood
Type
A+
Contains
Rh Protein
√
AB+
Red Blood Cells’ Surfaces Contain
A antigens
√
√
√
AB O+
A Antibodies
√
BAB +
B antigens
Plasma Contains
Parent’s Blood Type
B Antibodies
√
Parent #1
A
Parent #2
A or O
√
A
A or O
√
√
B
B or O
√
√
B
B or O
√
√
A
B
√
√
A
B
√
O-
√
√
O
O
√
√
O
O
How can blood typing aid a criminal investigation?
If blood is found at the crime scene it can be matched to the blood type of potential suspects to either
rule them out as a suspect or keep them as a potential suspect.
What advantages does blood typing have over DNA? What are its disadvantages?
Blood type analysis is much quicker and less expensive than DNA analysis. It can help investigators
quickly rule out a potential suspect. It cannot positively identify the perpetrator because blood types
are not unique, whereas DNA results can positively identify a suspect as the perpetrator.