Blood and Serology
This is the study of blood and its components.
What is serology?
Main blood groups in the ABO system
What are A, B, AB, and O?
Four Letters signifying the base pair sin DNA?
A, T, C, G
This technique copies small amounts of DNA.
What is PCR?
Three main categories of bloodstains
What are passive, projected, transfer?
Two chemical tests used to detect blood presumptively.
What are Kastle-Meyer and Luminol?
This factor determines positive or negative blood type.
What is Rh?
DNA’s overall shape.
What is double helix?
National DNA database for crime-solving.
What is CODIS?
Bloodstain caused by gravity alone.
What is passive?
This color change indicates a positive Kastle-Meyer test
What is pink?
Blood types that can donate to type B individuals
What are B and O?
Name one source of DNA at a crime scene.
What is hair, blood, saliva, or skin?
Short sequences of DNA repeated multiple times in a row.
What are STRs?
Bloodstain caused by external force like a gunshot.
What is projected?
This type of test confirms blood presence, unlike presumptive tests.
What is confirmatory?
Sample agglutinates with anti-A and anti-Rh sera but not anti-B.
What is A positive?
These cut DNA at specific sequences.
What are restriction enzymes?
STR patterns are compared on this lab tool.
What is gel electrophoresis?
Bloodstain caused by a bloody object touching a surface.
What is transfer?
A confirmatory test using crystals to identify hemoglobin.
What is Takayama (or Teichmann)?
The term agglutinates means to ___________.
Clump
Matching DNA fragments to a suspect is called DNA ______.
What is fingerprinting?
The three steps of PCR are denaturation, ______, and extension.
What is annealing?
In bloodstain pattern analysis, this measurement—calculated from the width-to-length ratio of an elliptical stain—helps investigators determine the direction from which a blood droplet struck a surface.
What is the angle of impact?