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Test Bank For Evolutionary Analysis 5th Edition By Jon C. Herron; Scott Freeman 9780321616678 Chapter 1-20 Complete Guide .Complete Test bank, All Chapters are included. 1 / 4
1 Copyright © 2014 Pearson Education, Inc.Evolutionary Analysis, 5e (Herron/Freeman)
Chapter 1 A Case for Evolutionary Thinking: Understanding HIV
1) In which of the following regions has AIDS killed the largest number of individuals?
- India
- Sub-Saharan Africa
- United States
- China
- United Kingdom
Answer: B
Section: 1.1
Skill: Knowledge/Comprehension
2) The HIV virus contains all of the following components except ________.
- integrase
- double-stranded RNA
- single-stranded RNA
- reverse transcriptase
- protease
Answer: B
Section: 1.1
Skill: Knowledge/Comprehension
3) The acronym HIV stands for which of the following?
- human intercellular virus
- human immune virus
- human immunodeficiency virus
- human immunity virus
- human immunodeficiency vector
Answer: C
Section: 1.1
Skill: Knowledge/Comprehension
4) Which of the following enzymes is responsible for transcribing viral RNA into DNA?
- RNA polymerase
- reverse transcriptase
- DNA polymerase
- reverse integrase
- RNA duplicase
Answer: B
Section: 1.1
Skill: Knowledge/Comprehension 2 / 4
2 Copyright © 2014 Pearson Education, Inc.5) The proteins that enable the HIV virus to bind to cells are typically CD4 and CCR5. On what type of cells are these proteins typically observed?
- plasma cells
- dendritic cells
- effector helper T cells
- memory helper T cells
- both C and D
Answer: E
Section: 1.1
Skill: Knowledge/Comprehension
6) The AIDS phase of HIV infection begins when the concentration of CD4 T cells in the blood drops below what concentration?
- 2,000 cells per cubic millimeter
- 1,000 cells per cubic millimeter
- 500 cells per cubic millimeter
- 200 cells per cubic millimeter
- No CD4 T cells are observed.
Answer: D
Section: 1.1
Skill: Knowledge/Comprehension
7) Which of the following drug categories are used to treat HIV infections?
- integrase inhibitors
- protease inhibitors
- reverse transcriptase inhibitors
- DNAse inhibitors
- fusion inhibitors
Answer: D
Section: 1.2
Skill: Knowledge/Comprehension
8) Coreceptor inhibitors block HIV infection by preventing which of the following?
- binding of the HIV virion onto the plasma membrane
- binding of the HIV virion onto the CCR5 receptor
- binding of the HIV virion onto the gp120 protein
- degrading the coreceptor so the virion cannot attach
- binding of the HIV virion onto the CD4 receptor
Answer: B
Section: 1.2
Skill: Application/Analysis
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3 Copyright © 2014 Pearson Education, Inc.9) What is the effect of the ∆32 allele of CCR5 on HIV binding?
- appears on the surface of CD4 T cells, but the HIV virion is unable to infect the host cell
- does not appear on the surface of CD4 T cells
- appears on the surface of the CD4 T cells and inactivates the virion upon binding
- interferes with binding of the virion to the CD4 receptor protein
- appears on the surface of the CD4 T cells and causes the virion to lyse upon binding
Answer: B
Section: 1.3
Skill: Application/Analysis
10) The ∆32 allele of CCR5 is found at the highest frequency in which of the following populations?
- Africans
- Japanese
- North Americans
- Europeans
- South Americans
Answer: D
Section: 1.3
Skill: Knowledge/Comprehension
11) HIV-1 is believed to have been transmitted to humans from which of the following organisms?
- gorillas
- sooty mangabeys
- African green monkeys
- chimpanzees
- baboons
Answer: D
Section: 1.4
Skill: Knowledge/Comprehension
12) HIV-1 Group M is responsible for 95% of human infections. When is it estimated that HIV-1 Group M was transferred to humans?
A) 1980
B) 1960
C) 1930
D) 1995
E) 1900
Answer: C
Section: 1.4
Skill: Knowledge/Comprehension
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