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Forensics Bell Ringers

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Forensics Bell Ringers Spring 2011 January 4, 2011 What is the difference between rigor mortis and livor mortis? January 3, 2011 Name three things you remember ... – PowerPoint PPT presentation

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Title: Forensics Bell Ringers


1
Forensics Bell Ringers
  • Spring 2011

2
May 27, 2011
  • The specific protein produced by a cell are
    directly related to the
  • Sequence of nucleotides in the DNA of the cell
  • Length of the chromosome
  • Sequence of sugars and phosphates in the cell
  • Turn in 5 bell ringers from this week

3
May 26, 2011
  • The minimum temperature at which a liquid fuel
    will produce enough vapor to burn is called the
    _______.

4
May 25, 2011
  • The process of eliminating alcohol occurs through
    the mechanisms of _____

Turn in homework extension passes, Blue Gold or
Student of the Month Extra Credit
5
May 24, 2011
  • Which hallucinogen can be synthesized by a simple
    chemical process and is often manufactured in
    clandestine laboratories?

Turn in homework extension passes, Blue Gold or
Student of the Month Extra Credit
6
May 23, 2011
  • Pigment granules that impart hair with color are
    found in the ____

Turn in homework extension passes, Blue Gold or
Student of the Month Extra Credit
7
May 20, 2011
  • No class due to school play

8
May 19, 2011
  • Differentiate between oligospermia and aspermia
  • Turn in 3 bell ringers from this week

9
May 18, 2011
  • How do the hardness and porosity of a surface
    affect blood spattering on that surface?

10
May 17, 2011
  • No School

11
May 16, 2011
  • What is the standard test used to determine
    whether blood is of human or animal origin and
    what is the principle underlying test?

12
May 13, 2011
  • No bell ringer

13
May 12, 2011
  • No bell ringer KCCT testing

14
May 11, 2011
  • No bell ringer KCCT testing

15
May 10, 2011
  • No bell ringer KCCT testing

16
May 9, 2011
  • No Bell ringer today.

17
May 6, 2011
  • How do the hardness and porosity of a surface
    affect blood spattering on that surface?
  • Turn in 5 bell ringers from this week

18
May 5, 2011
  • Describe how luminal is used to detect
    bloodstains.

19
May 4, 2011
  • Describe how antibodies and antigens determine
    ones A-B-O blood type.

20
May 3, 2011
  • What is plasma? What percentage of blood content
    does plasma account for?

21
May 2, 2011
  • What are chromosomes?

22
April 29, 2011
  • No class, PROM presentation

23
April 28, 2011
  • The evidence suggests which suspect raped the
    victim?
  • Turn in 4 bell ringers from this week

24
April 27, 2011
  • During gel electrophoresis the DNA is
  • Undergoing hybridization
  • Extracted from the cell nuclei
  • Separated by fragment size
  • Cut into fragments
  • Visualized using x-rays

25
April 26, 2011
  • Y-STR markers are useful when multiple males are
    involved in a sexual assault. If three men were
    involved in such an attack, the investigators
    would expect Y-STR analysis to show a maximum of
    how many?

26
April 25, 2011
  • Which component of DNA forms the backbone of the
    molecule?

27
April 22, 2011
  • What is the number of nitrogenous bases needed to
    code for a specific amino acid?
  • Turn in 5 bell ringers from this week

28
April 21, 2011
  • Luminol can be used at crime scenes to
  • Make hair evidence fluoresce
  • Light up the crime scene with high degree
    illumination
  • Detect traces of blood without compromising
    potential DNA typing
  • Locate latent prints that otherwise would be
    overlooked
  • Prove the presence of illicit drugs

29
April 20, 2011
  • Which statement is NOT true? Few forensics labs
    do analysis of mt-DNA because
  • The analysis procedure is very rigorous
  • It costs much more than nuclear DNA profiling
  • Such study takes a long time
  • Little mtDNA is present in a cell
  • All of the above are TRUE

30
April 19, 2011
  • What type of packaging should be used for
    articles containing biological evidence?

31
April 18, 2011
  • What gene is often used to determine the sex of a
    DNA contributor?

32
April 15, 2011
  • Name two process by which a forensic scientist
    can separate STRs for characterization
  • Turn in 5 bell ringers from this week

33
April 14, 2011
  • What are tandem repeats and what is their
    function?

34
April 13, 2011
  • Name and pair up the 4 nucleotides found in DNA.

35
April 12, 2011
  • Briefly explain how DNA replication occurs.

36
April 11, 2011
  • Tell me three things you did over spring break.

37
April 1, 2011
  • Factors that can contribute to abnormal
    observations at the fire scene include
  • Winds or drafts
  • Secondary fires due to collapsing floors or roofs
  • Stairways or elevator shafts
  • Holes in the structure
  • All of the above
  • Turn in 5 bell ringers from this week

38
March 31, 2011
  • What is a taggant? What purpose do taggants
    serve?

39
March 30, 2011
  • What is the difference between deflagration and
    detonation?

40
March 29, 2011
  • Name three reasons why arson investigators must
    work quickly to collect evidence at a fire scene.

41
March 28, 2011
  • In what physical state must a fuel exist in order
    to produce combustion when it reacts with oxygen?
    Why must it be in this state?

42
March 25, 2011
  • Name two factors that influence the speed of
    reaction of a fire.
  • Turn in 5 bell ringers from this week

Turn in Homework Extension Passes, Blue Gold
Cards, or Student of the Month Cards for extra
credit
43
March 24, 2011
  • What is combustion?

Current 3rd 9 weeks grades are in your folder,
anything highlighted needs to be turned in
ASAP Turn in Homework Extension Passes, Blue
Gold Cards, or Student of the Month Cards for
extra credit
44
March 23, 2011
  • What is oxidation?

Turn in Homework Extension Passes, Blue Gold
Cards, or Student of the Month Cards for extra
credit
45
March 22, 2011
  • Name three characters from the movie Clue

Turn in Homework Extension Passes, Blue Gold
Cards, or Student of the Month Cards for extra
credit
46
March 21, 2011
  • If you were not here on Friday, turn in last
    weeks bell ringers
  • Name the area of the body where alcohol content
    is minimal after consumption
  • Brain
  • Cerebrospinal fluid
  • Vitreous humor

47
March 18, 2011
  • Once blood is removed from an individual it must
    be seals in an airtight container with the
    following additives
  • Acetic acid and an acid
  • Anticoagulant and acetic acid
  • A preservative and an anticoagulant
  • An acid and base for neutralization
  • None of the above
  • Turn in 4 bell ringers from this week

48
March 17, 2011
  • The amount of carbon monoxide in blood is
    generally expressed as
  • Per unit volume
  • mL/gram
  • percent saturation
  • Pascals
  • liter/kilogram
  • Agenda
  • TEST over Ch. 10
  • CSI

49
March 16, 2011
  • The process of eliminating alcohol occurs through
    the mechanisms of
  • Oxidation and diffusion
  • Absorption and distribution
  • Oxidation and excretion
  • Distribution and diffusion
  • Exhalation and cellular respiration

50
March 15, 2011
  • No bell ringer, ACT Test

51
March 14, 2011
  • The ratio of blood alcohol to alveolar air is
  • a. 1 to 2
  • b. 2100 to 1
  • c. 50 to 50
  • d. 100 to 1

52
March 11, 2011
  • Explain how inhaling carbon monoxide can cause
    death.
  • Turn in 5 bell ringers from this week

53
March 10, 2011
  • Name two challenges faced by toxicologists in
    regards to forensic analysis.

54
March 9, 2011
  • Describe two methods of blood collection used
    when measuring alcohol content.

55
March 8, 2011
  • When collecting blood for analysis of BAC, why is
    a non-alcoholic disinfectant used?

56
March 7, 2011
  • Tell me one thing you learned from doing last
    weeks lab.
  • Why did the room smell like vinegar when we were
    using aspirin?

57
March 4, 2011
  • What happened to the LSD when you shine
    ultraviolet light on it?
  • Turn in 4 bell ringers from this week
  • You do not have one for 3/2

58
March 3, 2011
  • What was unknown A from Tuesdays lab exercise?
  • What was unknown B?

59
March 2, 2011
  • No bell ringer Mrs. Green absent

60
March 1, 2011
  • What law best describes the relationship between
    alveolar air and blood concentration?
  • Yesterdays bell ringer
  • Are the field sobriety tests definitive?
  • What are they used for?

61
February 28, 2011
  • Are the field sobriety tests definitive?
  • What are they used for?

62
February 25, 2011
  • Identify and describe two divided-attention task
    administered during a field sobriety test
  • Turn in 4 bell ringers from this week
  • 2/21s bell ringer was an worksheet

63
February 24, 2011
  • Name at least three factors that influence the
    rate at which alcohol is absorbed into the
    bloodstream

64
February 23, 2011
  • Alcohol that is not oxidized is expelled
    unchanged in what bodily excretions?

65
February 22, 2011
  • Name three settings in which a toxicologist often
    works.

66
February 21, 2011
  • Pick up a Pre-Assessment from the stool and
    complete.
  • Put your name on it and turn it into the box

67
February 18, 2011
  • Duquenois-Levine solutions were used on a sample
    and the chloroform layer turned purple. This
    suggests that the test substance is
  • Marijuana
  • Cocaine
  • Valium
  • Heroin
  • Morphine
  • Turn in 5 bell ringers from this week

68
February 17, 2011
  • Which technique allows for both separation and
    specific identification of a questioned mixture
    of substances?
  • GC/MS
  • GC
  • UV Spectrophotometry
  • IR spectrophotometry
  • TLC

69
February 16, 2011
  • What percentage of evidence evaluated in the
    crime lab is drug-related?

70
February 15, 2011
  • The pattern and intensity of dependency on a drug
    DOES NOT depend on the
  • Cost of the drug
  • Individuals rate of metabolism
  • Dose and route of administration
  • Frequency of administration
  • Bioavailability of the active metabolite

71
February 14, 2011
  • In chromatography, the distribution of a gas
    between the liquid and gas phases is determined
    by
  • The density of the gas relative to the liquid
  • The volume of the gas in the container
  • The solubility of gas in the liquid
  • The mass of the gas relative to the liquid

72
February 11, 2011
  • What are anabolic steroids and why were they
    developed?
  • Turn in 5 bell ringers from this week

73
February 10, 2011
  • Name club drugs belonging to three different
    classes of drugs and indicate the class to which
    each belongs

74
February 9, 2011
  • What is a stimulant? Name two widely used
    stimulants.

75
February 8, 2011
  • List three potential medical uses of marijuana

76
February 7, 2011
  • Physical dependence develops only when the drug
    user
  • Takes large dose of a drug
  • Takes one drug to the exclusion of all others
  • Uses a drug on a regular schedule
  • Has used a drug for at least 6 months

77
February 4, 2011
  • Name three non-drug factors that play a part in
    drug dependence.
  • Turn in 4 bell ringers from this week

78
February 3, 2011
  • Name one illegal drug that you think a forensics
    lab would examine.

79
February 2, 2011
  • No bell ringer,
  • Mrs. Green absent

80
February 1, 2011
  • The polymeric makeup of paint binders can readily
    be compared by what method?

81
January 31, 2011
  • Which coating helps resist UV radiation and acid
    rain?
  • a. Basecoat
  • b. Electrocoat
  • c. Primer surface
  • d. Clearcoat
  • e. Colorcoat

82
January 28, 2011
  • Human hair is best characterized by
  • A medulla that is more than ½ the overall
    diameter of the hair shaft
  • A medulla that is absent or is less than 1/3 the
    overall diameter of the hair shaft
  • A continuous or interrupted medulla
  • Turn in 7 bell ringers from the last 2 weeks,
    1/18, 1/19, 1/24-1/28

83
January 27, 2011
  • Automobile finishes typically contain which
    layer(s)?
  • a. Colorcoat
  • b. Clearcoat
  • c. Electrocoat primer colorcoat
  • d. Electrocoat primer, colorcoat, and clearcoat
  • e. None of the above

84
January 26, 2011
  • Name two analytical devices used by forensic
    scientists to determine the class of fiber

85
January 25, 2011
  • Medullae may be classified as being
  • a. Interrupted or absent
  • b. Fragmented
  • c. Continuous
  • d. All of the above
  • e. None of the above

86
January 24, 2011
  • Nuclear DNA typing can be most successfully
    accomplished on hairs that have been removed
    during what stage of growth?
  • Telogenic
  • Catagenic
  • Anagenic

87
January 20-21, 2011
  • SNOW DAYs no bell ringer

88
January 19, 2011
  • The rate of human hair growth per month is
  • 1 inch
  • 1 milliliter
  • 1 centimeter
  • 1 decimeter
  • So variable as to be forensically worthless

89
January 18, 2011
  • What are some of the steps for collection and
    preservation of hair evidence?

90
January 17, 2011
  • No School

91
January 14, 2011
  • How were the charges against the teenagers in the
    Central Park Jogger cases dismissed?
  • What connected Mikail Markhasev to the murder of
    Ennis Cosby?
  • Turn in 3 bell ringers from this week

92
January 13, 2011
  • How did you spend your two snow days?
  • Describe one stage of hair growth

93
January 11 12, 2011
  • Snow Days No bell ringer

94
January 10, 2011
  • How is hair used for DNA analysis?

95
January 7, 2011
  • The successful outcome of criminal investigation
    is almost always directed related to
  • A manner in which the evidence is collected and
    preserved
  • The number of people employed in the crime lab
  • Whether the crime is consider high profile
  • The complexity of the crime
  • Turn in 5 bell ringers from this week

96
January 6, 2011
  • The concept of general acceptance of scientific
    evidence relates to the
  • a. First Amendment
  • b. Miranda warnings
  • c. Frye standard

97
January 5, 2011
  • Name two types of microscopes and describe what
    they are used for.

98
January 4, 2011
  • What is the difference between rigor mortis and
    livor mortis?

99
January 3, 2011
  • Name three things you remember learning about 1st
    semester.
  • Thursday, 1/6  Exams for periods 4 and 6
  • Friday, 1/7  Exams for periods 2 and 7
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