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Best Answer: 4) RNA contains ribose, DNA does not. DNA contain the deoxyribose sugar. Other differences may include; DNA is double stranded while RNA is single stranded. DNA contain the base thymine while RNA contain the base Uracil in place of thymine.
Second, while DNA contains deoxyribose, RNA contains ribose (in deoxyribose there is no hydroxyl group attached to the pentose ring in the 2' position). Third, the complementary base to adenine is not thymine, as it is in DNA, but rather uracil, which is an unmethylated form of thymine.Source(s):. RNA is made out of ribose, as opposed to deoxyribose. 2. DNA had adenine, guanine, cytosine, and thymine. In RNA, the thymine is replaced with uracil.