by Herron Jon; Freeman Scott ISBN 9780321998378
Chapter 1-20 A+
Chapter5615 6 A56Case56for56Evolutionary56Thinking:56Understanding56HIV
1) In56which56of56the56following56regions56has56AIDS56killed56the56largest56number56of56individua
ls?
A) India
B) Sub-Saharan56Africa
C) United56States
D) China
E) United56Kingdom56Answer:56B56Section:56
1.156Skill:56Knowledge/Comprehension
2) The56HIV56virus56contains56all56of56the56following56components56except .
A) integrase
B) double-stranded56RNA
C) single-stranded56RNA
D) reverse56transcriptase
E) protease56Answer:56B56Section:561
.156Skill:56Knowledge/Comprehension
3) The56acronym56HIV56stands56for56which56of56the56following?
A) human56intercellular56virus
B) human56immune56virus
C) human56immunodeficiency56virus
D) human56immunity56virus
E) human56immunodeficiency56vector56Answer:56
C56Section:561.1
Skill:56Knowledge/Comprehension
4) Which56of56the56following56enzymes56is56responsible56for56transcribing56viral56RNA56into56D
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, NA?
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,A) RNA56polymerase
B) reverse56transcriptase
C) DNA56polymerase
D) reverse56integrase
E) RNA56duplicase56Answer:56B56Section:56
1.156Skill:56Knowledge/Comprehension
5) The56proteins56that56enable56the56HIV56virus56to56bind56to56cells56are56typically56CD456and56C
CR5.56On56what56type56of56cells56are56these56proteins56typically56observed?
A) plasma56cells
B) dendritic56cells
C) effector56helper56T56cells
D) memory56helper56T56cells
E) both56C56and56D56Answer:56E56Section:5
1.156Skill:56Knowledge/Comprehension
6
6) The56AIDS56phase56of56HIV56infection56begins56when56the56concentration56of56CD456T56cel
ls56in56the56blood56drops56below56what56concentration?
A) 2,00056cells56per56cubic56millimeter
B) 1,00056cells56per56cubic56millimeter
C) 50056cells56per56cubic56millimeter
D) 20056cells56per56cubic56millimeter
E) No56CD456T56cells56are56observed.56Answer
:56D56Section:561.1
Skill:56Knowledge/Comprehension
7) Which56of56the56following56drug56categories56are56used56to56treat56HIV56infections?
A) integrase56inhibitors
B) protease56inhibitors
C) reverse56transcriptase56inhibitors
D) DNAse56inhibitors
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, E) fusion56inhibitors56Answer:56D56Section:56
1.256Skill:56Knowledge/Comprehension
8) Coreceptor56inhibitors56block56HIV56infection56by56preventing56which56of56the56following?
A) binding56of56the56HIV56virion56onto56the56plasma56membrane
B) binding56of56the56HIV56virion56onto56the56CCR556receptor
C) binding56of56the56HIV56virion56onto56the56gp12056protein
D) degrading56the56coreceptor56so56the56virion56cannot56attach
E) binding56of56the56HIV56virion56onto56the56CD456receptor56Answ
er:56B56Section:561.2
Skill:56Application/Analysis
9) What56is56the56effect56of56the56∆3256allele56of56CCR556on56HIV56binding?
A) appears56on56the56surface56of56CD456T56cells,56but56the56HIV56virion56is56unable56to56infect56the
56host56cell
B) does56not56appear56on56the56surface56of56CD456T56cells
C) appears56on56the56surface56of56the56CD456T56cells56and56inactivates56the56virion56upon56binding
D) interferes56with56binding56of56the56virion56to56the56CD456receptor56protein
E) appears56on56the56surface56of56the56CD456T56cells56and56causes56the56virion56to56lyse56upo
n56binding56Answer:56B
Section:561.3
Skill:56Application/Analysis
10) The56∆3256allele56of56CCR556is56found56at56the56highest56frequency56in56which56of56the56f
ollowing56populations?
A) Africans
B) Japanese
C) North56Americans
D) Europeans
E) South56Americans56Answer:56D56Section:56
1.356Skill:56Knowledge/Comprehension
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