Exam 9: Firearms, Toolmarks, and Other Impressions

A) in breathable paper after blood has dried
B) in an airtight clear plastic container
C) in an airtight metal container
D) in breathable paper while blood is still wet
E) in a metal paint can

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A) Linus Pauling.
B) Francis Crick.
C) James Watson.
D) Gregor Mendel.
E) both B and C

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A) 3-7 bases.
B) 18-2 bases.
C) 13-17 bases.
D) 8-12 bases.
E) 1-2 bases.

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A) It is thought that they may act as spacers between the coded regions of DNA.
B) Their origin is a mystery.
C) They are of no forensic interest.
D) More than 30% of the human genome is composed of these repeating units.
E) More than one STR can be analyzed at once in a process called multiplexing.

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A) phenylketonuria
B) cystic fibrosis
C) sickle-cell anemia
D) hemophilia
E) albinism

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Polymerase Chain Reaction (PCR) is a wid...

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A) extracted from the cell nuclei.
B) visualized using x-rays.
C) cut into fragments.
D) undergoing hybridization.
E) separated by fragment size.

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A) help to reveal the role and implications of evolution.
B) reveal the location of a gene on a particular chromosome.
C) be useful for diagnosing and treating genetic diseases.
D) aid in understanding the underlying causes of cancer.
E) all of the above

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A) gender.
B) age.
C) blood type.
D) eye color.
E) ethnicity.

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A) 4
B) 5
C) 6
D) 3
E) 2

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A) phosphate group
B) nitrogenous base
C) sugar
D) adenine
E) both A and C

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A) There is little variation in the number of repeats from person to person.
B) All humans have the same type of repeats.
C) Analysis is undertaken using a technique called Southern blotting.
D) Restriction enzymes are used to cut RFLPs from the DNA helix.
E) Typically a core repeat sequence would consist of 15-30 bases.

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A) number of mitochondria in the cell.
B) length of the chromosomes.
C) sequence of sugars and phosphates in the cell.
D) sequence of nucleotides in the DNA of the cell.
E) size of the cell.

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A) shared databases of DNA typing information from convicted felons and crime scene evidence.
B) vastly enhanced 911 emergency systems.
C) computers to track the movement of sex offenders released from prison.
D) standards for forensic science evaluators.
E) crime laboratory directors.

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A) three
B) two
C) four
D) one
E) five

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