Blood Type
These are the four blood groups
A, B, AB, O
The higher the height the blood drop falls from, the ____ the blood stain will be
Larger
This is a critical branch of forensic science that deals with the identification and analysis of bodily fluids found at crime scenes.
What is serology?
These are the types of cells found in blood
What are red and white blood cells
This type of test can show blood stains after it has been wiped away
What is a Luminol Test
Anti-B antibodies
Directionality can be determined by analyzing the what of the bloodstain
What is the tail
Where the blood came from and how it spread over the surface
What is trajectory
This portion of the blood helps with blood clotting
What are platelets?
This test uses a chemical reaction between blood and hydrogen peroxide to produce a pink color
What is Kastle-Meyer test
A person with type B- blood can donate to a person with these blood types
B- and AB-
The absence of a tail indicates the blood dropped form from this angle
What is 90 degrees
This technique is faster and less expensive than DNA testing
What is blood typing
What are Rh factors
This technique is used to eliminate suspects or confirm that blood does not match a victim
What is blood typing
O-
To find this, an investigator must find the width and length of a blood stain and plug it into an equation
Investigators use a method called stringing to find this
What is the area of convergence
This is the fluid portion of blood
What is plasma
The higher the energy of the impact of blood drops, the ____ the drops are
What is smaller
A person with positive blood can only donate to someone with this type of blood
What is positive
Blood drops fall as small ___ (shape)
What are spheres
This test is used to determine if a sample is human blood
What is precipitin testing
These cells are used to fight off infection
What are white blood cells
Blood always travels in the direction of the applied ___
What is force