Blood Basics
a vital bodily fluid in humans and many other organisms that performs essential functions to sustain life
Blood
What are the 3 alleles for blood types?
A,B, O
What can an examiner learn from blood spatter analysis?
Height, Angle of Impact, Type of weapon used, Force and Velocity of Impact, etc.
How are our Blood types Determined and when? (Must get BOTH)
By parents/ and before you are born
2 main orders of insects that show up in decomposition? (Scientific names)
Diptera/ Coleoptera
______________________ (erythrocytes) – The most abundant cells in our blood; they are produced in the bone marrow and contain a protein called hemoglobin that carries oxygen to our cells.
Red Blood Cells
Universal Donor Blood Type?
O
________________ (or drip) stains occur when gravity pulls blood downward to the surface.
Passive
What animal helped discover the Rh protein?
Rhesus Monkey
(DOUBLE POINTS)
2 types of Metamorphosis?
Complete/Incomplete
______________________ (leukocytes) – They are part of the immune system and destroy pathogens.
White Blood Cells
Universal Acceptor Blood Type?
AB
_________________ stains occurs when a bloody object comes in contact with another object or surface; appears as smears or stripes
Transfer
Name the 4 types of Bases (or the letters)
ATGC
List a beetle that shows up in late stage decomposition.
Hide/Skin/Ham and Checkered
(thrombocytes) – The clotting factors that are carried in the plasma; they clot together in a process called coagulation to seal a wound and prevent a loss of blood.
Platelets
Complete this statement: A person with Rh + blood may receive blood that is ____, while a person with Rh - blood can only receive _____ blood.
+or-, negative
________________ (or ___________ ) patterns occur when a force is applied to a bloody object or pool; may be classified as high, medium or low velocity.
Spatter/ Impact
What are the 3 parts that make up DNA?
Phosphate Group
DeoxyRibose (Pentose) Sugar
Nitrogenous Base
List a fly that shows up in early stage decomp.
Blow Fly/Greenbottle or Flesh Fly
What is agglutination?
The clumping of blood cells due to incompatible blood types
A person with B- blood can receive blood from who? (must get all)
O-, and B-
What does BPA represent?
Bloodstain Pattern Analysis.
(DOUBLE POINTS)
What does DNA stand for? (Complete Name)
Deoxyribonucleic Acid
How do you determine PMI
Time of death to the time body is discovered