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本课程起止时间为:2021-09-14到2021-11-30

9.Chapter 29 Herpesviruses 8.Eighth week test

1、 问题:Which of the following changes in viral genome is most likely to bring about a new subtype of influenza virus?
选项:
A:base deletion 
B:base substitution 
C:frame shift 
D:reassortment 
E:base insertion
答案: 【reassortment 

2、 问题: Which of the following are most prevalent subtypes of influenza viruses in humans?
选项:
A:H7N9 and H1N1
B:H3N2 and H1N1 
C:H1N1 and H2N2 
D:H5N1 and H3N2
E:H9N2 and H7N7
答案: 【H3N2 and H1N1 

3、 问题:A 3-year-old child presents at the physician’s office with symptoms of coryza, conjunctivitis, low-grade fever, and Koplik’s spots. Which of the following viruses is most likely the causative agent of the infection?
选项:
A:influenza virus 
B:measles virus
C:mumps virus 
D:respiratory syncytial virus (RSV) 
E:rubella virus
答案: 【measles virus

4、 问题:Sabin vaccine is a
选项:
A:inactivated vaccine
B:attenuated vaccine 
C:DNA vaccine
D:recombinant vaccine  
E:subunit vaccine
答案: 【inactivated vaccine

5、 问题:Viral gastroenteritis in young children is mainly caused by
选项:
A: Adenovirus 
B:Rotavirus 
C:Poliovirus
D:Coxsackie virus
E:EHCO virus
答案: 【Rotavirus 

6、 问题:The transmission routes of human cytomegalovirus do not include 
选项:
A:breast feeding
B:blood transfusion and organ transplantation
C:transmission via placenta
D:arthropod vector
E:sexual contact 
答案: 【arthropod vector

7、 问题:Which of the following descriptions is not correct about herpes viruses?
选项:
A:enveloped viruses 
B:induce CPE in infected cells
C:cause latent infection
D:linear double-stranded DNA genome
E:replicate in the cytoplasm
答案: 【replicate in the cytoplasm

1.Chapter3 Phage 1.First week test

1、 问题: Which of the following belongs to eukaryotic microorganism? 
选项:
A:Bacteria  
B:Virus
C:Chlamydia
D:Actinomycetes  
E:Fungi
答案: 【Fungi

2、 问题:The unique component of the cell wall of Gram-positive bacteria is:
选项:
A:Peptidoglycan
B:Chitin
C:Cholesterol
D:Teichoic acid
E:Lipopolysaccharide
答案: 【Teichoic acid

3、 问题:The main component of endotoxin is:
选项:
A:peptidoglycan 
B: protein
C: flagella
D:nucleic acid 
E:lipopolysaccharide
答案: 【lipopolysaccharide

4、 问题:L-type bacteria refer to:
选项:
A:Bacteria in dormant state 
B:Bacteria with cell wall defects
C:Non-pathogenic bacteria
D:Bacteria with irreversible variation 
E:Smooth and rough colony variation
答案: 【Bacteria with cell wall defects

5、 问题:Which of the following descriptions about spores is correct?
选项:
A:Spores can only be formed outside the body.
B:It is a special form of bacteria to maintain life. 
C:The bacteria forming spores are G + bacteria.
D:Once the spores pollute the environment, it can cause difficulty in disinfection and sterilization. 
E:All of the above are correct.
答案: 【All of the above are correct.

6、 问题:Which of the following descriptions is wrong about plasmid?
选项:
A: It is indispensable gene for the bacteria.
B: It is genetic material outside the chromosome of bacteria. 
C: It has the characteristics of self-replication and transmission to next generations. 
D:It can be transferred from one bacterium to another. 
E:It can be lost by itself.
答案: 【 It is indispensable gene for the bacteria.

7、 问题: What is wrong about pili?
选项:
A:Commonly seen in G-bacteria.
B:It is the motor organ of bacteria. 
C:Can be divided into common pili and sexual pili. 
D:Common pili is related to bacterial adhesion. 
E:Sexual pili can transfer genetic materials.
答案: 【It is the motor organ of bacteria. 

8、 问题:In bacterial growth, biological traits are most typical in
选项:
A: lag phase 
B: logarithmic phase  
C:stationary phase
D:decline phase 
E:All of the above 
答案: 【 logarithmic phase  

9、 问题: Which one is incorrect about ultraviolet sterilization? 
选项:
A:It can interfere with DNA synthesis. 
B:The disinfection effect is related to the action time. 
C:Commonly used for disinfection of air and surface of objects. 
D:It is irritating to eyes and skin. 
E:It has strong penetration.
答案: 【It has strong penetration.

10、 问题:Which of the following is NOT a specialized structure of bacteria? 
选项:
A:flagellum
B:pilus
C:mesosome 
D:capsule
E:spore
答案: 【mesosome 

2.Chapter 6 Bacterial infection and antibacterial immunity 2.Second week test

1、 问题:The bacterial genetic and mutation materials do not include:
选项:
A:Plasmid;
B:Phage (bacteriophage) genome
C:Metachromatic particles
D:Transposon
E:Integron
答案: 【Metachromatic particles

2、 问题:β-bacteriophage infects non-toxic Corynebacterium diphtheriae and enables it to produce diphtheria exotoxin, this variation is: 
选项:
A:Gene mutation;
B:Transformation; 
C:Transduction;
D:Conjugation;
E:lysogenic conversion
答案: 【lysogenic conversion

3、 问题: Which of the descriptions about R plasmid is incorrect? 
选项:
A:R plasmid is a conjugative resistance plasmid;
B: Consists of resistance transfer factor (RTF) and resistance determinant (r-det)
C: r-det usually carries only one drug resistance gene
D:R plasmid can be transmitted between bacteria of the same species or different species by conjugation
E:R plasmid transmission is the most prominent among Gram-negative bacteria
答案: 【 r-det usually carries only one drug resistance gene

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