What helical forms are adopted by double-stranded RNA?
A. There is evidence for B-form RNA in viruses.
B. There is no evidence that A-form RNA occurs in cells.
C. The A form is the only form found for double-stranded RNA in cells and in viruses.
D. There is evidence that Z-form RNA occurs in cells under certain conditions.
E. The A form occurs only in the laboratory.
C
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A) 10 B) 25 C) 50 D) 100
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a. bulk feeders b. filter feeders c. fluid feeders d. omnivores
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