The nucleic acids carried by viruses usually consist of

A. DNA.
B. RNA.
C. either DNA or RNA.
D. both DNA and RNA simultaneously.


Answer: C

Biology & Microbiology

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Which of the following are important reproductive adaptations that allow plants to inhabit terrestrial environments?

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Which of the following structures encloses the flower before the flower opens?

a) petals b) corolla c) carpel d) calyx e) style

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