Viral particles can be identified within the cell at all stages except: ()
A. attachmente
B. clipse
C. latent
D. lysis
E. none of the above
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Which of the following are the first products produced by minus strand viruses? ()
A. RNA
B. DNA
C. protein
D. envelop
E. none of the above
Which part of viral replication cycle characterizes eclipse phase? ()
A. cm
B. mm
C. μm
D. nm
E. none of the above
Virus can be observed through ()
A. light microscope
B. Eletron microscope
C. X-ray diffraction
D. centrifugation
E. none of the above
Which of the following virus is complex symmetry ()
A. bacteriophage
B. herpesvirus
C. hantavirus
D. HIV
E. none of the above