What's in the Soil?
The vertical section of the soil from the ground surface downwards to where the soil meets the underlying rock.
Soil profile
If you have a sample of DNA that needs to be compared to other DNA from other crimes, where do you go to look?
CODIS the national database for DNA
How many drops of blood does it take to determine the origin of the blood?
2
What is the difference between marijuana, mushrooms, and pcp?
Marijuana and mushrooms are natural drugs. PCP is a synthetic drug
Blood drop that is circular in shape and low velocity blood spatter pattern
passive drop
Which has the largest size? Sand, silt, or clay
Sand
What is the process of amplifying DNA and making copies at specific loci?
PCR- Polymerase Chain Reaction
Who can donate to B+ blood?
B+, B-, O+, O-
A spiked soda that someone drinks would be accidental, intentional, or deliberate?
Accidental
Blood spatter pattern that is mist like and comes from coughing or sneezing
expirated
Which soil particle holds water the best and has the smallest particle size?
clay
You obtain a DNA profile from an unknown DNA sample. How can you determine it is male?
Explain what red blood cells, white blood cells, and platelets do for your body.
Red blood cells- carry respiratory gases like oxygen and CO2
white blood cells-fight infection and foreign invaders
platelets-help with blood clotting
What has NO EFFECT on BAC?
Age
What tells the direction of the blood spatter flow?
the tail
Which type of botanical evidence (evidence from plants) can be found in the nasal passages of a homicide victim found in the forest?
pollen
Which of the following gives you more information about a suspect and can narrow down information between siblings? Mitochondrial DNA or Nuclear DNA
Nuclear DNA
Which test needs to be performed at the crime scene to see if a red stain is actually blood?
Kastle-Meyer test
A man weighs 200 lbs and is 6ft had 3 drinks at dinner. His wife is 120 lbs and 5ft and had 3 drinks as well. Who has the higher BAC? Would he/she receive a DUI if they drove home and got pulled over? Why?
His wife has higher BAC because of her height and weight compared to alcoholic drinks. She would receive a DUI if she drove.
Is ricin a natural or synthetic toxin?
Natural
What happens when a body is buried a few weeks ago?
Vegetation is killed off because of the gases from the body
You receive the following STR profile of a child, mother, and possible father. Child has 8, 11. Mother has 10,11. Father has 8, 10. Could this be the child's father?
yes because he could have given the child the 8
What do crime scene analysts use to determine if blood was at a crime scene and had been cleaned up?
Luminol
Which test is an officer performing when they ask the person to look side to side and notice involuntary eye jerking when the eyes get to 45 degree angle
Horizontal Gaze Nystagmus test
IF you have a positive blood type such as O+ you have the _____ protein but no _____________
You have the rh protein but no antibodies