Blood Spatter

Front

What are antibodies?

Back

Proteins produced by the immune system in response to foreign antigens, such as bacteria or incompatible blood types.

Front

What type of blood spatter is created from a gunshot?

Back

High Velocity blood spatter, which is characterized by small droplets resulting from high-energy impacts.

Front

What type of evidence is blood type considered?

Back

Class evidence, as it can narrow down a group of potential sources but cannot uniquely identify an individual.

Front

What determines a person's blood type?

Back

The presence or absence of specific antigens on the surface of red blood cells.

Tags

NGSS.HS-LS1-1

Front

If Destiny has blood type B, what antigen is present?

Back

B antigen is present on her red blood cells.

Front

What is the Rh factor?

Back

A specific protein that can be present on the surface of red blood cells, determining whether blood type is positive or negative.

Front

What is the significance of blood spatter analysis?

Back

It helps forensic scientists reconstruct the events of a crime scene by analyzing the patterns and distribution of blood.

Front

What is the difference between individual and class evidence?

Back

Individual evidence can be linked to a specific source, while class evidence can only be associated with a group.

Front

What is the role of phagocytes in the immune response?

Back

Phagocytes are cells that engulf and digest foreign particles, including pathogens.

Front

What is agglutination in the context of blood?

Back

The clumping of red blood cells due to the interaction between antibodies and antigens.