Bio 1 Practice Study Questions with Complete
Answers
1. Which of the following cytoskeletal elements is NOT currently matched and
is not matched with a structure which is found?: Myosin - microtubule
2. In photosynthesis, electrons are used to reduce CO2 to simple sugars,
and oxygen is produced. Which of the following is the ultimate electron...:
Water
3. Which of the following best explains why many studies of competition have
been conducted on islands?: Island systems tend to have a high number of transient species than
continental systems do
4. Approximately how many protein-coding genes are there in the entire
human genome?: 25000
5. Which of the following situations represents the greatest potential danger of
Rh protein incompatibility?: An Rh-negative mother pregnant with her first Rh-positive child
6. Which of the following is true about reproduction in mosses?: Water is required
for fertilization
7. Which of the following statements about the process of nitrogen fixation in
root nodules of legume plants is correct?: It utilizes nitrogenase to produce NH4+ from N2
8. Which of the following is NOT necessary for a population to be in Hardy-Wein-
1
, berg equilibrium?: An approximately equal number of males and females
9. Gulls nesting in dense colonies tend to fledge fewer young than gulls in less
dense colonies. Which of the following is the LEAST: In dense colonies, gull chicks are exposed
to more parasites
10. Which of the following experimental results best demonstrates that a
partic- ular "clicking" sound in a social insect has a communication function?:
Individuals change their behavior upon hearing a recording of that sound???
11. Which of the following is a vital enzyme that catalyzes the production of
DNA using RNA as a template?: Reverse transcriptase
12. The annual rings of hardwood trees are composed of which of the
following tissues?: Xylem
13. Which of the following evolutionary processes helps to maintain
genetic polymorphism in a population?: Heterozygote advantage
14. A population that grows until it reaches carrying capacity is controlled
by the balance of: density-dependent vs. density-independent factors
15. Ichthyosaurs were aquatic reptiles whose closest relatives were
terrestrial reptiles. Based on fossil evidence, it is known that they had dorsal
fins and tails very similar to those of living fishes. The dorsal fins and tails
shared by ichthyosaurs and fish are examples of: plesiomorphies
16. A flower that lacks stamens CANNOT: form pollen
2
Answers
1. Which of the following cytoskeletal elements is NOT currently matched and
is not matched with a structure which is found?: Myosin - microtubule
2. In photosynthesis, electrons are used to reduce CO2 to simple sugars,
and oxygen is produced. Which of the following is the ultimate electron...:
Water
3. Which of the following best explains why many studies of competition have
been conducted on islands?: Island systems tend to have a high number of transient species than
continental systems do
4. Approximately how many protein-coding genes are there in the entire
human genome?: 25000
5. Which of the following situations represents the greatest potential danger of
Rh protein incompatibility?: An Rh-negative mother pregnant with her first Rh-positive child
6. Which of the following is true about reproduction in mosses?: Water is required
for fertilization
7. Which of the following statements about the process of nitrogen fixation in
root nodules of legume plants is correct?: It utilizes nitrogenase to produce NH4+ from N2
8. Which of the following is NOT necessary for a population to be in Hardy-Wein-
1
, berg equilibrium?: An approximately equal number of males and females
9. Gulls nesting in dense colonies tend to fledge fewer young than gulls in less
dense colonies. Which of the following is the LEAST: In dense colonies, gull chicks are exposed
to more parasites
10. Which of the following experimental results best demonstrates that a
partic- ular "clicking" sound in a social insect has a communication function?:
Individuals change their behavior upon hearing a recording of that sound???
11. Which of the following is a vital enzyme that catalyzes the production of
DNA using RNA as a template?: Reverse transcriptase
12. The annual rings of hardwood trees are composed of which of the
following tissues?: Xylem
13. Which of the following evolutionary processes helps to maintain
genetic polymorphism in a population?: Heterozygote advantage
14. A population that grows until it reaches carrying capacity is controlled
by the balance of: density-dependent vs. density-independent factors
15. Ichthyosaurs were aquatic reptiles whose closest relatives were
terrestrial reptiles. Based on fossil evidence, it is known that they had dorsal
fins and tails very similar to those of living fishes. The dorsal fins and tails
shared by ichthyosaurs and fish are examples of: plesiomorphies
16. A flower that lacks stamens CANNOT: form pollen
2
