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Chp 7: Drugs
Chp 13: Entomology
Chp 12: DNA
Chp 6: Fibers
More Chp 13: Entomology
100
6. What is the spot test for marijuana called?
What is Duquenois-Levine Test
100
16. What developmental stage is larvae in when it starts moving away from the food source?
What is Pre-Pupae
100
29. What is the function of a restriction enzyme?
What is Cut DNA strands into smaller fragments
100
40. Would polyester or mohair have more probative value? Explain.
What is Mohair. Less common.
100
What is ADH and how do you calculate it?
What is Accumulated Degree-Hours. Multiply the temperature and time it takes for larvae to grow to the 3rd instar stage.
200
7. Opiates fall under which classification scheme of illicit drugs?
What is Narcotics/Analgesics
200
18. What crucial piece of information can an entomologist provide about a case? Why is this essential?
What is Time of Death. Without it you can't place a suspect at a crime scene.
200
30. Can forensic scientists obtain a conviction by using mitochondrial DNA only?
What is- Yes if the suspect is an only child. But No if they have any siblings.
200
48. What is the strongest fiber known to man?
What is- Nylon
200
It takes 50 hours for a certain fly species to grow to the 3rd instar at 30 C. What is the ADH of this particular species?
What is 1500 ADH
300
8. Amphetamines fall under which category of controlled substances?
What is Schedule II
300
19. How can insects have probative value?
What is If an insect is indigenous to a particular area, it can link a suspect to a crime scene
300
31. Explain why heat is an effective separation method.
What is Because it is able to break the weak Hydrogen bonds holding DNA together.
300
46. What is the correct hierarchy of fibers from smallest to largest?
What is- Filaments, fibers, fabrics, textiles
300
1. The ADH of a certain species has been observed to be 400 hours at 20 C. How long would it take at 25 C? 2. What type of relationship do temperature and time exhibit?
What is: 1. 320 hours 2. Inverse
400
9. Marijuana falls under which classification scheme of illicit drugs?
What is Hallucinogens
400
21. What is the difference, if any, between time of death and PMI?
What is: Time of death is the exact time a body died, while PMI is when the insects arrive
400
32. DNA extracted from blood comes from which cells?
What is White blood cells
400
41. Explain what refractive index is and how it relates to fibers.
What is: Measurement of how much light bends as it passes through a substance. Different fibers will have different refractive indices. Help to determine if samples are the same.
400
22. By using livor mortis, what can a forensic scientist tell about a body?
What is: If a body has been moved after death
500
10. Alcohol falls under which classification scheme of illicit drugs?
What is Depressants
500
A body is found on January 20th @ 10:00 am. The average ambient temperature for the past 2 weeks has been 79 F (26.11 C). Larvae samples were taken to the lab and took 425 hours at 73.4 F (23 C) to become adult flies. This species has a known life cycle of 525 hours at 80.6 F (27 C). Calculate the date and time of death.
What is Jan 12 @ 6:40 pm
500
32. All cells containing DNA have what in common?
What is They all have a nucleus
500
45. Name 4 characteristics that are compared when trying to determine if fibers are the same.
What is- Origin (cellulose, mineral, etc.), weave pattern, chemical structure, cross section, density, refractive index, fluorescence, optical brighteners, & dyes
500
20. What type of fly are you most likely to find in shady areas/cooler climates?
What is Blue-bottle flies