Blood evidence and DNA analysis

Front

Blood typing is considered: class evidence, individual evidence, direct evidence, associative evidence

Back

class evidence

Front

An investigator reaches a crime scene and notices droplets of blood. She also notices that there is a wounded animal at the scene. Which test would be best to determine if the droplet of blood is human or animal?

Back

Precipitin test

Front

A serologist needs to determine the blood type found at a crime scene. He determines that the individual's blood agglutinated with B type blood or A antibodies; therefore the person had ___ type blood.

Back

A

Front

A serologist needs to determine the blood type found at a crime scene. He determines that the individual's blood agglutinated with both A and B type blood; therefore the person had ___ type blood.

Back

O

Front

A blood droplet that is perfectly round would have an angle of impact of:

Back

90 degrees

Front

The shape of a blood droplet depends on: height, angle, type of surface.

Back

all of the answers are correct

Front

When a blood stain is determined to be "cast off", this means that:

Back

the blood that is thrown from an object in motion

Front

When a blood droplet hits a rough surface, the edges of the droplet will be: scalloped (or have ridges), elliptical, round, smooth

Back

scalloped (or have ridges)

Front

DNA looks like:

Back

a double helix

Front

Which of the following items would NOT be a potential source of DNA? Hair without the root, Hair with the root, Teeth, Saliva, Blood

Back

Hair without the root