NEW
Font size
WorksheetsBlood and DNA
Total questions: 36
Worksheet time: 18mins
What does DNA stand for?
deoxyribonucleic acid
Do Not Activate
DiNethyl TryptAmine
Dirty Nucleic Areas
DNA has what kind of shape?
spiral staircase
triple helical
double helix
monohelical
What is PCR?
poly carbon reconnaissance
Polymerase Chain Reaction
Poly copper reductase
polyportables carbon reams
PCR does what to DNA?
copies
cuts
changes
mutates
Restriction enzymes do what to DNA?
copy
cut
change
mutate
Where is DNA in a living organism?
in the nucleus
in mitochondria
in the ribosomes
in both the nucleus & mitochondria
Mitochondrial DNA is passed down from your _______.
mother
father
grandparents
parents
Which person matches the blood stain from the crime scene?
Bob
Sue
John
Lisa
In gel electrophoresis, the DNA is moved through the gel by the way of _____.
the electricity acting on the negatively charged DNA
the gravity acting on the DNA
the magnetic field of the earth
the DNA acts like a living organism and crawls
Which crime scene suspect matches the felon in the database?
S1
S2
S3
Mr. Jones was killed in a car accident. Afterwards, a former girlfriend filed a paternity suit claiming that Mr. Jones was the father of her child, and thus she was entitled to the man’s estate. Which sample of DNA would have to be from Mr. Jones if he were the child’s father?
Sample 1
Sample 2
Sample 3
Sample 4
At a crime scene a small amount of biological material was recovered. In order to get more DNA to test the forensics team should ____.
run the sample through restriction enzymes
run the sample through gel electrophoresis
subject the sample to STR analysis
run the sample through PCR
Which test is used to detect invisible blood stains?
Kastle-Meyer
Luminol
Precipitin
Huminal
Blood platelets serve what function?
They produce antibodies to kill bacteria and viruses
they help clot blood and repair blood vessel damage
they carry nutrients and wastes to the proper organs in the body
they carry oxygen and carbon dioxide to the proper organs in the body
Small secondary droplets around the main blood spatter are called _____.
spikes
scores
satellites
gushes
In which types of blood cells would we find DNA?
Red blood cells
white blood cells
platelets
red & white blood cells
The drop shown above would have more than likely been dropped from an angle of ____.
90 degrees
50 degrees
30 degrees
10 degrees
The drop shown would have more than likely been dropped from an angle of around _____.
90 degrees
50 degrees
30 degrees
10 degrees
What kind of evidence is blood type?
individual
class
trace
physical
What blood stain pattern is created or formed by the force of gravity acting alone?
passive drop
low velocity impact spatter
drip pattern
flow pattern
What blood stain pattern is created when blood is released or thrown from a blood-bearing object?
cast-off
walking drip
medium velocity
void
What type of blood spatter is typically created from a gunshot?
medium velocity
high velocity
cast-off
void
How does the velocity of impact change the blood stain pattern?
higher velocity = larger diameter
higher velocity = smaller diameter
lower velocity = smaller diameter
medium velocity = small diameter
What blood spatter pattern is seen in the picture?
low velocity
cast-off
arterial spurting
medium velocity
What direction did this blood come from?
top
bottom
left
right
As blood drops from increasing heights, what happens to the size of the blood stain?
gets larger
gets smaller
stays the same
it changes color
What blood spatter pattern is seen in the picture?
transfer/contact
swipe
wipe
saturation
The lines in the picture are illustrating the points/lines of _____.
convergence
agreement
tangents
credit
Which letter best shows the convergence point (origin point)?
A
B
C
D
What can blood spatter evidence give you insight into?
the weapon used
the handedness of the assailant
the order of events
the angle of impact
all of these can come from blood spatter
What are the possibilities of the child's blood types if one parent is AB and the other parent is O?
100% O
100% AB
50% A & 50% B
100% A
A man with type AB blood is married to a woman with type O blood. They have two natural children and one adopted child. Jane has type A blood, Jordan has type B blood, and Marlin has type O blood. Which child was adopted? (HINT: USE A PUNNETT SQUARE if needed)
Jane
Jordan
Marlin
Both Jane & Jordan
all of the children are adopted
What type of blood does this person have?
A+
A-
B+
B-
AB+
In the DNA strand: CCGTACGTACGTACGTACGTACGTACGTACGTACGTACGTACGTACGTACGGATTGGCCTATA
What is the STR and how many times does it repeat?
CCGT, 1
GATT, 2
GTAC, 12
TA, 2
If a strand of DNA has the base pairs GGAATTCCGCAT, what is the complementary strand of that DNA?
GGAATTCCGCAT
TACGCCTTAAGG
CCTTAAGGCGTA
none of these
There are 4 strands of DNA, one with 25 base pairs, one with 18 base pairs, one with 15 base pairs and one with 7 base pairs. Which one would travel fastest(and further) through the gel in electrophoresis?
25
18
15
7
