Viruses with _____ sense RNA contain the correct message for translation, while viruses with _____ sense RNA must first be converted into a correct message.

Viruses with _____ sense RNA contain the correct message for translation, while viruses with _____ sense RNA must first be converted into a correct message. 




A. Positive, negative
B. Negative, positive
C. Primary, secondary
D. Secondary, primary
E. None of the choices are correct




Answer: A


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