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Which of the following statements is not true of viruses? | |
A. | Viruses have been successfully grown in pure cultures in test tubes [Correct Answer] |
B. | All viruses are obligatory intracellular parasites [Wrong Answer] |
C. | All viruses have either DNA or RNA as their genetic material [Wrong Answer] |
D. | Viruses probably arose from small fragments of cellular chromosomes [Wrong Answer] |