BIOL 320 Final Exam
1) List and briefly explain the four steps in the scientific
method.
2) Which of the following is the correct order of steps in
the scientific method?
A | ) | experiment, | |
B | ) | observation, | |
C | ) | hypothesis, | |
D | ) | observation, |
3) The two most important organelles in forensic DNA
analysis are thenucleus and
4) The
DNA laboratory genotypes three suspects DNA extracted from blood, and DNA
extracted from hair roots found at the scene. When the technician draws a
conclusion based on the genotyping results, the forensic term for this test or
process is called _____________.
5) An experiment
is designed to test a hypothesis.
A | ) | True | |
B | ) | False |
6) Due
to television shows jurors are expecting to see perfect fingerprints and
analyzable DNA on guns and other evidence. The absence of which has led
jurors to exonerate otherwise guilty suspects. This is known as the ____
effect.
7) is only inherited through
the maternal lineage.
8) isonly inherited through the
paternal lineage.
9) is inherited through paternal
and maternal lineages.
10) A
mother is claiming that the only brother of her best friend is the father of
her child. The brother is serving at a remote location in the easternmost
reaches of Turkey. At the behest of his sister, the brother voluntarily
provides DNA for a paternity test. Which of the following are the possible results and conclusions of the
tests?
A | ) | Since one-half of the | |
B | ) | Since none of the alleles from the brother | |
C | ) | Since one-half the | |
D | ) | Since only a few alleles | |
11) |
Answer:
11) How
many permanent teeth are typically found in a human mouth?
A | ) | 18 | |
B | ) | 32 | |
C | ) | 30 | |
D | ) | 36 |
12)
Measurements made on this bone, provide an accurate method of estimating the
stature from skeletal remains
A | ) | humerus | |
B | ) | femur | |
C | ) | tibia | |
D | ) | fubula |
Answer:
13)
Given that the offspring of human parents has the dominant phenotype freckles
and cleft chin, the parents gametes could be…
A | ) | homozygous | |
B | ) | heterozygous | |
C | ) | homozygous | |
D | ) | homozyogous recessive in Freckle gene and homozygous | |
Answer |
Answer:
14) In
a Punnett square, the letters that line the outside of the box represent…
A | ) | offspring | |
B | ) | parental | |
C | ) | gametes | |
D | ) | offspring |
Answer:
15) If
all thousand offspring of a cross have the genotype Aa, the parents of the
cross are most likely…
A | ) | AA | |
B | ) | Aa | |
C | ) | Aa | |
D | ) | AA |
Answer:
16) If
the first child of a couple was without dimples, an recessive trait, what is
the chance that the second child will be born without dimples?
A) 100%
B) 25%
C) 50%
D) Cannot be determined from the phenotype of the child
Answer:
17) If
a gamete with genotype Aa fertilized another gamete with genotype aa, the
offspring genotype could be…
A | ) | AA | |
B | ) | Aa | |
C | ) | aA | |
D | ) | aa | |
Answer:
18) What
is the phenotype ratio for a cross between Aa and Aa
A | ) | 1:2:1 | |
B | ) | 1:3 | |
C | ) | 1:1 | |
D | ) | 3:1 |
Answer:
19) What is the genotype ratio of a
Aa x Aa cross?
A | ) | 3:1A | |
B | ) | 1:2:1 | |
C | ) | 2:1:1 | |
D | ) | 1:1:2 |
Answer:
20) Which
of the following parts of a human cell contain information useful to a forensic
investigator?
A | ) | Nucleus | |
B | ) | Golgi | |
C | ) | Mitochondria | |
D | ) | Cell membrane | |
E | ) | Nuclear membrane |
Answer:
21) In
a population of 100 individuals, the genotype frequency of allele 17.1 is .25,
then ____ individuals have this allele.
22) DNA
is a (n)
A | ) | lipid | |
B | ) | protein | |
C | ) | carbohydrate | |
D | ) | polymer |
Answer:
23) Which of the following base
pairs is incorrect?
A | ) | G-C | |
B | ) | C-A | |
C | ) | A-T | |
D | ) | T-A |
Answer:
24) PCR is a technique that
A | ) | MolecularlyXeroxes | |
B | ) | Requires | |
C | ) | Can | |
D | ) | Is |
Answer:
25)
Given the following DNA sequence: 5′-CAGTCA-3′, the complementary strand
is3’-GTCAGT-5’
26)
Which of the following is a use of forensic entomology?
A | ) | Obtaining | |
B | ) | Determining | |
C | ) | Calculating | |
D | ) | Determining the quantity of ingested toxins and drugs |
Answer:
27: Which of the
following insects are most likely found during the first stages of
decomposition?
A | ) | Blow | |
B | ) | Dermestid | |
C | ) | Coffin | |
D | ) | Wasps |
Answer:
28) The technical term for an insect
laying eggs is _______ and the technical term for an insect laying larva is
_______.
29) A
reddish fluid is found on a floor of a suspect’s house. As a CSI, you
desire to make a preliminary determination of the substance. You will likely perform a ____________ test for
__________.
30) The
element _____ is found in hemoglobin and it is what is detected in several
___________ blood tests
31) Briefly
describe the three steps used in PCR?
32)
Which of the following is not a characteristic of rigor mortis?
A | ) | Upon | |
B | ) | Rigor Mortis first starts with small muscles in the face | |
C | ) | The | |
D | ) | Rigor mortis in and of itself cannot always be a |
Answer:
33) Which of the following bones are not used for sex
estimation in adults:
A | ) | pelvis | |
B | ) | tibia | |
C | ) | femur | |
D | ) | cranium |
Answer:
34) Which of the following is incorrectly matched?
A | ) | oviposits: | |
B | ) | instars: | |
C | ) | larvaposit: | |
D | ) | nymph: |
Answer:
35) Hemoglobin
contains a _____________ group that binds oxygen.
36) True/False: DNA is single stranded and RNA is double
stranded.
37) ________________ cells contain a nucleus.
38) Humans have ________ pairs of chromosomes.
39) The expression of a gene is called the gene’s
____________________.
40) A validation procedure must be ___________________,
___________________, and ____________________.
41) The peroxidase
activity of heme groups catalyzes the oxidation of ___________________ to
____________________ in the Kastle-Myer presumptive test for blood.
42) A person who has no sperm cells would be classified as
being ____________________.
43) The odor in
feces is caused by the decomposition products ____________ and
_________________.
44) Most animals
have three major pairs of salivary glands that differ in the type of secretion
they produce called the __________________, _______________________, and
____________________ glands.
45) True/False:Amy2
is the “Salivary Locus” responsible for amylase detected in saliva, sweat,
nasal secretions, breast milk and Amy1 is the “Pancreatic Locus” – responsible
for amylase detected in semen, blood, urine, feces, and vaginal fluid
46) True/False:
Beta Amylase is the type of amylase that is found in plants.
47) True/False: Fingerprints
are developed during the early stages of fetal development
48) _______________ fingerprints are composed of the sweat and oils of the body that are transferred from
the ridge pattern to some substrate where they persist for some time until
found by one of numerous visualizing techniques.
49) The types of
manners of death and
accidental death.
51) is the stiffening of the body after death due to the membranes of muscle cells
becoming more permeable to calcium ions.
52) Save file with your name in the file extension.
