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BIO 200 EXAM 2 PRACTICE QUESTIONS AND ANSWERS| LATEST| DOWNLOAD FOR GRADE A+
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BIO 200 EXAM 2 PRACTICE QUESTIONS AND ANSWERS| LATEST| DOWNLOAD FOR GRADE A+
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Notes on Biology: Concepts and Applications
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Lecture 11 Practice Questions1. Which of the following would you not find in a virion?
A. Protein coat
B. DNA
C. RNA
D. RNA specifically for transcription
E. The same nucleotides found in the genetic code of living organisms.
Points Earned:0/1
Correct Answer:D
Your Response:B
2. A virus has which of the following?
A. cytosol
B. plasma membrane
C. genetic material
D. circular chromosomes
E. all of the above
Points0/1
Earned:
CorrectC
Answer:
YourB
Response:
3. Kuru is a disease which affects the brain. It was endemic among the Fore tribe of Papua New Guinea and
was universally fatal. It is characterized by headaches, joint pains and shaking of the limbs. In fact, the
word kuru means ―trembling with fear‖ in the language of the Fore people. Before its eradication, kuru was
more prevalent in women and children than in men. It is believed by some scientists that the disease
spread easily in the Fore people due to their cannibalistic funeral practices. The increased infection in
women and children is thought to be due to the fact that while the men of the village ate the flesh of the
deceased, the women and children ate the brains. With elimination of these practices, kuru disappeared
among the South Fore within a generation.
What causes kuru?
A. A virus
B. A bacteria
C. An archaea
D. A prion
, E. Kuru is a form of cancer
Points Earned:0/1
Correct Answer:D
Your Response:A
4. Prions …
A. are proteins.
B. are destroyed with high levels of radiation.
C. are a form of cancer.
D. are an ancestral form of virus.
E. contain DNA and RNA.
Points Earned:0/1
Correct Answer:A
Your Response:D
5. Adenoviruses can infect humans, causing respiratory illness or conjunctivitis (pink eye). What surrounds
the genetic material of an adenovirus?
A. An
envelop
e
B. A helical tail
C. A capsid
D. A cell wall
E. A capsule
Points Earned:0/1
Correct Answer:C
Your Response:D
6. The picture below contains:
, A. A binal virus
B. An icosahedral shape
C. A virus that infects bacteria only
D. Genetic material
E. All of the above
Points Earned:0/1
Correct Answer:E
Your Response:C
7. Which of the following is an INCORRECT completion of the following sentence? Eukaryotes, but not
―prokaryotes,‖…
A. have true
organelles.
B. no longer have cell walls.
C. have recombination.
D. reproduce sexually.
E. None of the above is incorrect.
Points Earned:0/1
Correct Answer:B
Your Response:E
, 8. ―Prokaryotes‖ have all of the following characteristics EXCEPT:
A. They reproduce independently
from other prokaryotes
B. Their cells contain no organelles
C. Their cells perform specialized functions
D. Their chromosomes are circular in shape
E. They can divide through binary fission
Points Earned:0/1
Correct Answer:C
Your Response:A
9. You work in a research lab and your professor claims to have found an unclassified single-celled species.
She asks you to study its cell structure under the microscope and you note that when you stain the
organism’s chromosomes that they are not enclosed by a membrane. What deduction can be made from
this observation?
A. this organism is a recently evolved
species
B. this organism is related to autotrophic species
C. this organism is probably related to an ancient fungal species
D. this organism is prokaryotic
E. nothing definitive can be deduced from this information
Points Earned:0/1
Correct Answer:D
Your Response:C
10. Which of the following statements is false?
A. Viruses can have either DNA or
RNA as genetic material
B. Prions are not damaged by extremely high levels of radiation
C. Bacteria have unenclosed, linear DNA
D. Both a and b are false
E. Both b and c are false
Points Earned:0/1
Correct Answer:C
Your Response:B
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