Components of Blood
This occurs when red blood cells clump together by the action of an antibody binding with antigens.
What is Agglutination?
Blood typing is less expensive and quicker for analyzing blood evidence than DNA profiling. Blood type is considered _________ evidence.
What is class evidence?
This test can link blood to an individual.
What is DNA analysis?
This type of bloodstain pattern suggests that bloody hair was dragged across the floor.
What is a swipe bloodstain pattern?
The ______ of a bloodstain increases as the height increases.
What is the diameter?
This is the full name of antigen.
What is antibody generator?
The presence or absence of particular ________ found on the surface of red blood cells determines a person’s blood type.
What are antigens?
A blood sample contains only A and B antigens on the red blood cell.
What is blood type AB-?
This is a bloodstain feature resembling spokes or rays emanating out from the edge of a drop/stain.
What are spines?
These two things are needed to determine the Area of Convergence and Area of Origin.
What is the angle of impact and direction of travel?
These are the four components of blood, when separated by a centrifuge.
What are red blood cells, white blood cells, platelets, and plasma?
This blood sample contains both A and B antigens. What is the blood type?
What is Type O?
This blood type clumps only in the presence of B antibodies.
What is type A blood?
A medium-velocity-sized blood splatter (1 to 4 mm) is likely caused by _______.
What is blunt force trauma?
This is the location of the blood source as viewed in 3D
What is the area of origin?
These blood cells carry respiratory gases, mainly oxygen and carbon dioxide.
What are red blood cells?
What type of blood can someone with type A receive?
What is Type A and Type O?
These two tests determine if a sample is blood.
What are the Kastle-Meyer test and the Hemastix test?
What happens to the shape of a blood droplet as the angle of release changes from a 90-degree drop toward a 10-degree drop?
What is elongated and tear drop shaped?
This measurement = arcsin(width/length)
What is the angle of impact?
These blood cells secrete antigens which assist in the immune response.
What are white blood cells?
If your blood does contain the RH protein, your blood is said to be________.
What is Rh positive (Rh+)?
This test can determine whether any blood found was animal or human.
What is the Precipitin test?
This is a pattern resulting from the movement of a source dripping blood between two points. This is usually caused by ______.
What is a drip trail? What is an injury?
This type of blood spatter is a Pattern created from a large volume of blood falling onto a surface, a Large wound, or an object full of blood moves positions
What is a splash?