forensics quarterly review

What test produces light when possible blood is present?

Luminal.

Which test uses antibodies that react to human blood to identify mammal blood?

ELISA.

Which test reacts with blood stains and turns pink if blood is present?

Kastle-Meyer.

What technique did Egyptians use to try to cure diseases?

Bloodletting.

Blood typing is considered what kind of evidence?

Class evidence.

What component of red blood cells carries oxygen?

Hemoglobin.

Why is blood red?

Because it contains iron.

Blood is considered to be a type of what?

Tissue.

Which type of cell is most abundant in blood?

Red Blood Cells (RBCs).

Which type of blood cells fight disease as part of the immune system?

White Blood Cells (WBCs).

What makes up most of blood plasma?

Water.

Which statement is NOT true about blood typing?

It can help determine the manner in which a victim died.

Which statement is NOT true about blood spatter analysis?

All of the above are true.

What is the function of blood platelets?

They help clot blood and repair blood vessel damage.

What are small secondary droplets around the main blood spatter drop called?

Satellites.

What does a circular drop of blood indicate?

A blood drop fell straight down, without force.

What type of injury is common with circular blood drops?

Dripping wound.

The Rh factor was discovered when studying which organism’s blood?

Monkey.

What are the extensions called that may form when blood lands on a porous surface?

Spikes.

What injury is associated with blood spatter larger than 4mm?

Gunshot.

What type of injury is associated with medium velocity blood spatter measuring 1-4mm?

Blunt object impact.

How can you determine if blood is from a mammal by looking under a microscope?

It has circular, un-nucleated RBCs.

What binds to and destroys foreign invaders during an antigen-antibody response?

Y-shaped antibodies.

What type of white blood cell is activated during an antigen-antibody response?

B-lymphocyte.

Who should be concerned with Erythroblastosis fetalis?

Women with Rh- blood who intend to have children with an Rh+ male.