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Q21 - Which Animal Viruses Must Package an Enzyme Inside the Capsid

Theoretical 2 Real exam question - full text reproduced under IBO's CC BY-NC-SA 4.0 license
Translation & the Genetic Code Recombinant DNA & Biotechnology Techniques

Animal viruses are classified by the nucleic acid contained in the capsid. In addition to nucleic acid, some viruses contain enzyme proteins, such as RNA polymerases, inside the virus particles. Viruses: A, Smallpox virus (double-stranded DNA); B, B19 parvovirus (single-stranded DNA); C, Rotavirus (double-stranded RNA); D, Rhinovirus (single-stranded RNA, mRNA-sense); E, Influenza virus (single-stranded RNA, template of mRNA); F, HIV/retrovirus (single-stranded RNA).

Using the information and data, determine which of the statements are true or which are false.

which viruses need a packaged enzyme. Select the most appropriate combination of viruses (from A-F) that must contain an enzyme in the capsid for replication.
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Question reproduced from IBO 2020, Theoretical Exam 2, licensed under CC BY-NC-SA 4.0 - attributed to the International Biology Olympiad. Open the full exam PDF · Community solutions (unofficial)