A) sugar moiety is ribose
B) uracil replaces thymine
C) single stranded
D) exclusive to viruses.
Correct Answer: D
Solution :
: RNA is usually single stranded except in some viruses (e.g., reovirus), pentose sugar is ribose sugar, and nitrogen bases are adenine, guanine, uracil and cytosine. A little quantity of RNA is found in nucleus while a comparatively large quantity is found in cytoplasm. Usually RNA does not replicate but it acts as a genetic material in some of the viruses.
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