Unit 3 Review: Biological Evidence and DNA

Front

What is the Precipitin test?

Back

A laboratory test used to distinguish between human and animal blood by detecting specific antibodies.

Front

What is the most common type of evidence found at a crime scene?

Back

Fibers are the most common evidence left at a crime scene.

Front

What does the angle of impact indicate in blood spatter analysis?

Back

The angle of impact can help determine the direction from which the blood originated.

Front

Can you determine the species of hair evidence without DNA analysis?

Back

Yes, it is possible to determine the species of hair evidence through microscopic examination.

Front

What type of surface is likely to produce a more circular blood droplet?

Back

A smooth surface is likely to produce a more circular blood droplet.

Front

What are leukocytes?

Back

Leukocytes, or white blood cells, are part of the immune system and help the body fight infections.

Front

What role do fibers play in forensic science?

Back

Fibers can link a suspect to a crime scene or victim, providing crucial evidence.

Front

What is the significance of blood spatter patterns?

Back

Blood spatter patterns can provide information about the events that occurred during a crime.

Front

What is the difference between human and animal blood under a microscope?

Back

Human blood has a different structure and composition of red blood cells compared to animal blood.

Front

What is agglutination in the context of blood analysis?

Back

Agglutination is the clumping of blood cells in response to an antibody, indicating blood type.