Consider a virus with a plus strand RNA genome 8 kb in length, which encodes 8 p

Question

Consider a virus with a plus strand RNA genome 8 kb in length, which encodes 8 proteins. Which of the following is a known mechanism for producing all 8 proteins from this genome?

A. A single polyprotein is synthesized which is then processed by proteases to form 8 proteins B. The RNA is cleaved into 8 fragments, each of which is translated into a different protein C. Immediately upon entering the cells, the virion-associated viral RNA polymerase produces 8 subgenomic mRNAs from the plus strand RNA genome D. There is no way to produce multiple proteins from a eukaryotic RNA

Explain your answer, thanks.

Explanation / Answer

In this question correct answer is A. Positive RNA strand viruse such as polio virus, toga viruses infect the host cells and synthesize a single polypeptide and this polypeptide is cleaved by proteaseses.

In this RNA fragmentiaon and subgenomice mRNA formation is not occure.

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