BIOL 304 FINAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS); ALREADY GRADED A+
1. A hypothetical population has two alleles for a gene: A and a.
In a random sample of 100 individuals, 20 are homozygous for a,
20 are homozygous for A, and 60 are heterozygous. What is the
frequency of A?
a. 20%
b. 25%
c. 50%
d. 60%
e. 80% - correct answer- C
1. Adam Jones and colleagues (2000) studied the mating
behavior of broad-nosed pipefish (Syngnathus typhle) in a
laboratory situation. For which sex is sexual selection a more
potent evolutionary force?
a. Females
b. Males
c. Both sexes are under equal sexual selection pressure
,d. Neither sex is under sexual selection pressure - correct
answer- A
1. Complications in constructing phylogenetic trees due to
reversals and convergent evolutions are known collectively as...
- correct answer- Homoplasy
1. Estimates of the age of Earth, taken from meteorites, date our
planet to be approximately... years old - correct answer-
4.5 to 4.6 billion
1. Evidence for the evolution of antibiotic resistance in bacteria
has been evaluated...
a. In populations of bacteria within individual patients
b. In studies comparing newly diagnosed patients v. patients
who have relapsed after antibiotic treatment
c. In studies comparing the fraction of patients with resistant
bacteria and society-wide use of antibiotics
d. In all of the above examples
e. In no empirical studies; there is no evidence that antibiotics
act as a selective agent - correct answer- D
,1. In experiments by Greene and colleagues (1987) with the
tephritid fly Zonosemata vittigera and the umping spider
Phidippus apacheanus, the purpose for gluing housefly wings
onto the bodies of the tephritid fly was to...
a. Test for the effect of wing surgery in preventing predation
b. Test for the effect of wing markings in preventing predation
c. Control for the effect of wing waving in preventing predation
d. Test for the effect of wing shape in preventing predation -
correct answer- B
1. Large evolutionary changes that result in the placement of
related organisms into different genera or higher-level taxa
occurs via the process of
a. Speciation
b. Macroevolution
c. Microevolution
d. Independent evolution
e. Evolutionary differentiation - correct answer- B
1. Most DNA-based phylogenetic analyses place humans and
chimpanzees (including bonobos) as each other's closest
relatives, but a persistent minority of studies place gorillas and
chimpanzees as sharing a common ancestor that was not a
, human ancestor. The reason is incomplete lineage sorting, which
simply means that...
a. The ancestral species of all great apes was genetically variable
at some loci, and each descendant species lost different random
combinations of ancestral alleles
b. The labs that sequenced great ape DNA made a simple
procedural error
c. Mitochondrial genes can become unlinked and be inherited by
independent assortment
d. Primate lineages are not completely reproductively isolated
and can hybridize
e. Coding regions of the primate genome are more likely to give
false results than noncoding regions such as SINEs - correct
answer- A
1. The abbreviation QTL stands for... , (three words) which are
those genes that influence nonqualitative traits. - correct
answer- Quantitative trait loci
1. The creation of new combinations of alleles, as a consequence
of sexual reproduction with meiosis, is called...
a. Genetic recombination
b. Outcrossing
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS); ALREADY GRADED A+
1. A hypothetical population has two alleles for a gene: A and a.
In a random sample of 100 individuals, 20 are homozygous for a,
20 are homozygous for A, and 60 are heterozygous. What is the
frequency of A?
a. 20%
b. 25%
c. 50%
d. 60%
e. 80% - correct answer- C
1. Adam Jones and colleagues (2000) studied the mating
behavior of broad-nosed pipefish (Syngnathus typhle) in a
laboratory situation. For which sex is sexual selection a more
potent evolutionary force?
a. Females
b. Males
c. Both sexes are under equal sexual selection pressure
,d. Neither sex is under sexual selection pressure - correct
answer- A
1. Complications in constructing phylogenetic trees due to
reversals and convergent evolutions are known collectively as...
- correct answer- Homoplasy
1. Estimates of the age of Earth, taken from meteorites, date our
planet to be approximately... years old - correct answer-
4.5 to 4.6 billion
1. Evidence for the evolution of antibiotic resistance in bacteria
has been evaluated...
a. In populations of bacteria within individual patients
b. In studies comparing newly diagnosed patients v. patients
who have relapsed after antibiotic treatment
c. In studies comparing the fraction of patients with resistant
bacteria and society-wide use of antibiotics
d. In all of the above examples
e. In no empirical studies; there is no evidence that antibiotics
act as a selective agent - correct answer- D
,1. In experiments by Greene and colleagues (1987) with the
tephritid fly Zonosemata vittigera and the umping spider
Phidippus apacheanus, the purpose for gluing housefly wings
onto the bodies of the tephritid fly was to...
a. Test for the effect of wing surgery in preventing predation
b. Test for the effect of wing markings in preventing predation
c. Control for the effect of wing waving in preventing predation
d. Test for the effect of wing shape in preventing predation -
correct answer- B
1. Large evolutionary changes that result in the placement of
related organisms into different genera or higher-level taxa
occurs via the process of
a. Speciation
b. Macroevolution
c. Microevolution
d. Independent evolution
e. Evolutionary differentiation - correct answer- B
1. Most DNA-based phylogenetic analyses place humans and
chimpanzees (including bonobos) as each other's closest
relatives, but a persistent minority of studies place gorillas and
chimpanzees as sharing a common ancestor that was not a
, human ancestor. The reason is incomplete lineage sorting, which
simply means that...
a. The ancestral species of all great apes was genetically variable
at some loci, and each descendant species lost different random
combinations of ancestral alleles
b. The labs that sequenced great ape DNA made a simple
procedural error
c. Mitochondrial genes can become unlinked and be inherited by
independent assortment
d. Primate lineages are not completely reproductively isolated
and can hybridize
e. Coding regions of the primate genome are more likely to give
false results than noncoding regions such as SINEs - correct
answer- A
1. The abbreviation QTL stands for... , (three words) which are
those genes that influence nonqualitative traits. - correct
answer- Quantitative trait loci
1. The creation of new combinations of alleles, as a consequence
of sexual reproduction with meiosis, is called...
a. Genetic recombination
b. Outcrossing
