Vocabulary
What is the hair follicle?
root base of a hair containing DNA
What are the four blood types? Bonus if you guess which can have two types transfused.
A, B, AB, O
What are the four grid types? (Hint one of them is in this sentence)
Grid, Spiral, Line, Quadrant
What are the three parts of hair?
Cuticle,Cortex, and Medulla
Where is DNA located?
In the nucleus of the cell
What is the Cortex?
The region of hair located outside of the medulla
What are the two types of white blood cells that fight of bacteria. What do each do?
Antigens trigger the immune stem to act, and antibodies latch on to any bacteria.
What are Locard's 2 principles?
1st:If an object comes into contact with something, matter gets exchanged between them.
2nd: Intensity and duration can determine the extent of the transfer.
what part of the hair can DNA be found?
Hair follicle
What are Chromosomes?
It is the "cell "that house DNA inside it as well as being responsible for a baby's gender when it is in the womb.
What is direct and circumstantial evidence?
Direct: Firsthand observations, eyewitness accounts, dash boards
Circumstantial: Indirect evidence used to imply a fact. Information that only the victim and suspect know.
What are hemoglobin's functions and characteristics?
To carry oxygen throughout the body. It contains iron which makes it red, and it doesn't have a nucleus.
What is the chain of custody?
It is the continuous process of handing down evidence, marking it, and so on and so forth. The final container is marked with the original finder's signature.
What are the two main functions of hair?
1.Regulates body temperature
2.Decrease Friction
What was the DNA Identification Act?
It was issued in 1994 when Congress provided mor funding to forensic laboratories and communication with law enforcement
What are genes?
Segments that are part of DNA that house genetic code.
What do platelets and plasma do?
Platelets are cells that repair cuts and plasma carry out nutrients and makes up most of the blood in the body.
What is the team of crime scene Investigators?
Police officers, investigators, medical examiners, detectives, specialists
What is hair made out of?
How can it be used to solve previous cases?
It can revive cold cases by profiling which was able identify missing persons or parentage situations.
What does CODIS stand for and what does it do?
Combined DNA Index System
It collects criminals DNA within a database so in the case that the criminal commits a crime again.
What are the 4 major components of blood?
RBC, WBC, Platelets, and Plasma
What are the seven steps of crime scene investigation?
1.Seeing the Scene
2.Separating the Witnesses
3.Scanning the Scene
4.Seeing the Scene
5.Sketching the Scene
6.Searching for evidence
7.Securing and Collecting Evidence
What are the Life Stages of hair?
1.Anagen Stage: 80-90% of hairs in this stage
2.Catagen Stage: Accounts for 2% of hairs as it grows.
3.Telogen Stage: Hair is dormant and lost and is 10-18% of hair
Fun Fact: How long would DNA be if it was unraveled?
6ft