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The latest view for the origin of viruses
Options:
A .  These have arisen from nucleic acid and protein, found in primitive soup.
B .  These arose from bacteria as a result of the loss of cell wall, ribosome, etc.
C .  These arose from some bacteria, which had developed a nucleus only
D .  These are modified plasmids, which are infact fragments of the nucleic acids of the lost.
Answer: Option D
:
D
Many scientists believed that viruses are modified plasmids, which are the fragments of nucleic acids of host. These genome fractions escaped and got induced into host cells.
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