Forensic Science: Blood Spatter Analysis

Two basic types of blood evidence are:

• phenolphthalein and dried bloodstains

• liquid blood evidence and dried bloodstains

• Luminol and Leucomalachite

These proteins are found on the surface of red blood cells and they provide self identity

• antibodies

• DNA

• phospholipids

• antigens

O blood type is also known as the

• universal acceptor

• universal donor

• lease effective blood type

• the positive protein

The Rh factor antigen is represented by this symbol

• +

• X

• O

• A

When antibodies and antigens attach together like a lock and key this is called

• antibody attack

• protein attachment

• blood clotting

• agglutination

Identify this blood type

• A -

• A+

• O+

• AB+

Which blood type is the universal acceptor?

• A-

• AB-

• AB+

• O+

To determine whether a bloodstain is of human or animal origin, the serologist will perform:

• Kastle-Meyer Color Test.

• Benzidine Color Test.

• Hemastix Strip Test.

• Precipitin Test.

A drop of blood that strikes a surface at an angle of impact approximately 90-degrees will be close to _______ in shape.

• circular

• teardrop

• elliptical

• elongated

At which angle did this blood drop most likely strike the surface?

• approximately 90-degrees

• approximately 40-degrees

• approximately 20-degrees