Searching, Testing, Extras
Polygraph, Fingerprints, and Hair
A vampire's favorite drink
DNA
Random
100
Link, Line, Grid, Zone, Spiral, or Ray
Used on large, outdoor crime scenes. Members of the search team are arranged at regular intervals, usually arm’s length, and then proceed to search along straight lines.
Line Method
100
Give an example of trace evidence
Hair, fibers, fingerprints, tiny glass shards, plant material
100
Blood is made of these 4 things:
red blood cells, white blood cells, platelets, plasma
100
How many rings does a purine have? Pyrimidines?
Purine has 2 rings.
Pyrimidine has 1 ring.
100
What is the blood type?
AB-
200
Blood testing done at a crime scene that show blood but it sometimes returns false positives
Presumptive testing
200
What can typically happen to heart rate, blood pressure, sweating, or respiratory rate during a polygraph if someone is lying?
They can increase
NOTE: not all of those vitals have to increase. An increase in even one vital sign can show deception.
200
What is hemoglobin and where is it found?
Protein that carries oxygen.
Found in red blood cells.
200
What makes up the DNA backbone?
Sugar and phosphate
200
What are the 4 base pairs and how do they pair?
Adenine - Thymine
Cytosine - Guanine
300
Link, Strip, Grid, Zone, Spiral, or Ray
Searchers follow the first line pattern and search in the same manner as the line method. Once the first line pattern is complete, searchers realign on the other line pattern.
Grid Method
300
Loop
300
These parts of the blood can stop bleeding. I want the fancy name for these that ends in -cytes
Thrombocytes
300
What is the charge on a phosphate group in the DNA backbone?
Negative
300
A person with A- blood had a very severe blood clot after receiving A+ blood. Why did this happen?
A- blood produces Rh antibodies. A+ blood has the Rh antigen on its cells. The Rh antibodies attacked the Rh antigen on the A+ blood.
400
What does DNA stand for?
Deoxyribonucleic acid
400
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Whorl
400
What is an antigen and antibody?
Antigen: the marker on the outside of the cell that helps determine blood type
Antibody: protein that attacks specific antigens
400
What is the monomer of DNA?
Nucelotide
400
What organism makes restriction enzymes?
Bacteria
500
When looking at a polygraph, vitals don't always have to increase with a lie. During a polygraph, sometimes respiration can drop. Why?
When people are about to lie, they may try to slow their breathing to decrease their physiological responses and "trick" the polygraph.
500
Label all three parts of the hair
1. Cuticle
2. Cortex
3. Medulla
500
A person has O- blood. What antigens and antibodies do they have?
They have no antigens. They have A, B, and Rh antibodies.
500
What are the three parts of a nucleotide?
Sugar, phosphate, nitrogen base
500
What does PCR do?
Makes copies of DNA fragments after DNA has been cut with restriction enzymes