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Infectious agent solely composed of rna

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Reference no: EM13530171

A _______ is an infectious agent solely composed of RNA, whereas a_________ is an infectious

agent solely composed of protein.
a. Retrovirus, bacteriophage
b. Viroid, virus
c. Prion, virus
d. Retrovirus, prion
e. Viroid, prion

Reference no: EM13530171

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