BIO by M Tahir ( Lecturer Al Azhar ) virus chapter

nmdcat.online July 11, 2026

During classification based on nucleic acid, a virus containing negative-sense single-stranded RNA requires

A. Direct translation by host ribosomes

B. Conversion into complementary positive-sense RNA before translation

✓

C. DNA synthesis before infection

D. Reverse transcription immediately after entry

📝 Explanation

Negative-sense RNA cannot be translated directly. It must first be converted into positive-sense RNA by viral RNA-dependent RNA polymerase.

📖 Additional Information

Direct translation by host ribosomes
Conversion into complementary positive-sense RNA before translation
DNA synthesis before infection
Reverse transcription immediately after entry

Negative-sense RNA cannot be translated directly. It must first be converted into positive-sense RNA by viral RNA-dependent RNA polymerase.

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