Chapters 11 and 12 Exam Review
___________________ is a field of forensic science that deals with physical properties of blood and the patterns produced. Question 1
Blood Stain analysis
In 1982, a killing spree began in the Seattle area In 1982, a killing spree began in the Seattle area. This killer was found guilty 20 years later due to DNA evidence. Gary Ridgeway became known as the ______________________. Question 2
Green River Killer
To identify individuals, forensic scientists can scan _______ DNA regions that vary from person to person and use the data to create a unique DNA profile. There is an extremely small chance that another person has the same DNA profile for a particular set of regions. Question 3
13
What is the name of the sugar in DNA? Question 4
Deoxyribose
What is the proper complementary protein chain for ACCAATGGAC? Question 5
TGGTTACCTG
A match with DNA profiling is based on a _________________. Question 6
Probability
___________________ are those whose blood type antigens are also found in other body fluids. Question 7
Secretors
A blood drop that has a tail shows _____________ and _______________. Question 8
Movement and Direction
The clumping of red blood cells is known as ______________________. Question 9
Agglutination
What is the examination and analysis of body fluids? Question 10
Serology
Which is a condition affecting the shape of a blood droplet? Question 11
Size of a drop Angle of impact Velocity Texture of target surface
Who discovered that there are four different types of human blood based on the presence or absence of specific antigens found on the surface of the red blood cells? Question 12
Karl Landsteiner
In 1953, _________________ and Francis Crick discovered the configuration of the DNA molecule. Question 13
James Watson
The acute angle formed between the direction of a blood drop and the plane of the surface it strikes is the ______________________. Question 14
Angle of impact
A substance in blood that reacts with an antigen is known as a ______________________. Question 15
Antibody
When blood drops fall, they take on a ___________________ shape. Question 16
Spherical
The luminal test showed a possible presence of blood due to the ________________________. Question 17
Chemiluminescense
___________________________ is a presumptive test that turns a deep pink color if blood is present. Question 18
Kastle-Meyer
The presumptive test that distinguishes between human and animal blood. Question 19
Precipitin
Which ABO blood type is commonly referred to as the universal donor? Question 20
O
What is a technique used to separate DNA fragments into visible bands? Question 21
Gel Electrophoresis
Who is credited with developing DNA profiling using RFLP? Question 22
Sir Alec Jefferys
Which of the following has no nuclei and therefore no nuclear DNA? Question 23
Red Blood Cells
Based on profiling, who was the first person convicted using a DNA profiling? Question 24
Colin Pitchfork
What are the enzymes that are used to cut DNA into smaller fragments? Question 25
Restriction Enzymes
High velocity blood spatter can be attributed to what type of crime? Question 26
Shooting
What occurs when a person receives the wrong type of blood during a blood transfusion? Question 27
Blood clots and death can occur
The national database that contains nearly 16 million entries as of December 2016 that is used to identify unknown suspects is known as the __________________. Question 28
Combined DNA Index system CODIS
_______________________ is blood that is directed back toward the source of the energy. Question 29
Backspatter Pattern
What are locations (loci) on the chromosome that repeat a specific sequence of two to ten base pairs? Question 30
Short Tandem Repeats
_______________________ is blood that is directed back toward the source of the energy. Question 31
Back spatter pattern
What are locations (loci) on the chromosome that repeat a specific sequence of two to ten base pairs? Question 32
Short tandem repeats (STR)
__________________ is a lab technique used to make multiple copies of DNA for further testing or characterization. Question 33
PCR
What is the type of bloodstain that is created by the force of gravity and appears as drops or blood pools? Question 34
Passive
Which blood type does not contain A or B agglutinogens? Question 35
O
What is the type of bloodstain that is created by an object in motion? Question 36
Cast off
In the process of electrophoresis, the ______________________ fragments are closest to the injection wells? Question 37
Larger fragment
What kind of weapon would most likely cause misting? Question 38
Gun
Which of the following does not have nuclear DNA? Question 39
RED
What is an example of DNA typing? Question 40
Match Exclusion Inconclusive
Mitochondrial DNA is ____________________. Question 41
Inherited from the mother
What is a use of DNA profiling? Question 42
Exonerate individuals Match organ doners Proff of paternity
What relates to the direction a drop of blood travels from its point of origin? Question 44
Directionality
Analysis of mDNA is not used as often as nuclear DNA analysis because _________________. Question 44
More costly More rigorous More time consuming