D. All of these
Moreover, All of these are Self-assembly of subunits in the tobacco mosaic virus, Interaction of DNA with proteins, RNA and protein association in ribosomes. Tobacco mosaic virus is a rod-shaped virus with a positive-sensed RNA genome that encodes 126 kD and 183 kD subunits of replicase, a 30 kD movement protein and a 17.5 kD coat protein. The virion consists of the viral RNA protected by 2130 subunits of assembled CP.
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