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Which of the following is/are the living characteristics of virus?
a) they occur in different varieties     
b) they have DNA or RNA
c) they reproduce and cause diseases
d) all of these


Which of the following is/are the non-living characters of virus?
a) they lack cellular structure            
b) they can be crystallized and stored
c) they do not respire 
d) all of these


A complete viral particle is called……
a) virion                                 
b) viroid
c) prion                                   
d) phage


Which of the following virus/es contain/s reverse transcriptase?
a) retrovirus                
b) HBV
c) both a and b         
d) none of these


Icosohederal capsomeres have……faces.
a) 5                 
b) 20               
c) 30               
d) 6


The viral envelop often covered with……..spikes.
a) protein                    
b) glycolipid
c) lipoprotein              
d) glycoprotein


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