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Which of the following statements is true w.r.t viruses?
Option: 1
Viruses can perform the cellular metabolic activities invitro
Option: 2
Viruses can perform the cellular metabolic activities invivo
Option: 3
Viruses can perform the cellular metabolic activities independently
Option: 4
All of these
Answers (1)
Virus:
- A virus is a nucleoprotein entity which requires a living host to replicate by utilising the replication machinery of its host
- Viruses were discovered by Ivanowsky (1892)
- Beijerinek called viruses as ‘contagium vivum fluidum’ which refers to living infectious fluid.
- The term Virus was coined by Pasteur which refers to poison.
- Viruses are obligate parasites.
- Viruses have not given any place in the classification because they have acellular structure and inert crystal like when present outside the host. When present in the host they replicate and weaken the host and sometimes eventually kill the host.
Viruses can perform the cellular metabolic activities in vivo only.
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