SAT Subject Biology Practice Question 351: Answer and Explanation

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Question: 351

1. All of the following are true about RNA EXCEPT

A. it is single-stranded
B. its bases are adenine, thymine, guanine, and uracil
C. it has a sugar-phosphate backbone
D. its sugar is ribose
E. it is found in the both the nucleus and the cytoplasm of the cell

Correct Answer: B

Explanation:

B RNA bases do not include thymine; they are adenine, guanine, cytosine, and uracil. All other statements about RNA are correct. Remember the LEAST/EXCEPT/NOT technique!

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