Exam 16: Serology

A number of angled bloodstains at a crime scene in a specific area may allow the investigator to determine

The process where antibodies and antigens of the same type come together is known as

The reagent used to visualize sperm is called

The origin of blood according to species is generally confirmed by an immunoprecipitation test.

Semen that has no sperm is termed

PSA is secreted by the testicles into semen.

A red blood cell is known as a thrombocyte.

Cast off bloodstains occur on surrounding surfaces from the repeated use of a bloody instrument.

A white blood cell is known as a leukocyte.

The solid part of the blood consists of

The type of bloodstain pattern that arises from a cut artery gushing blood is known as

The type of bloodstain that results repeated blows on victim is known as impact spatter due to blunt force.

DNA is rarely used to identify suspects or innocent victims.

The presumptive (field) test that determines if a bloodstain is human in origin is called

The protrusions around a circular bloodstain that appear after a blood drop hits the surface

The Teichmann and Takayama tests for the presence of blood are presumptive tests.

The reagent used to denote the presence of seminal fluid is:

The type of bloodstain pattern that arises when an object moves through an existing bloodstain

The angle of impact of blood spatter is determined by

Electrophoresis is rarely used to separate enzymes in blood.