RNA is single-stranded and is generally straight. Uracil links to adenine in RNA just like thymine does in DNAįinally, DNA is double-stranded and forms a double helix structure. Thymine had the chemical formula C5H6N2O2 and uracil is C4H4N2O2. Instead, it has uracil, a nucleiotide base with a slightly different chemical makeup. You probably know that DNA has guanine, cytosine, adenine, and thymine, and that guanine links to cytosine and adenine links to thymine. Second, while each has four nucleiotide bases, there is one difference. These names describe the sugar that makes up their backbone-DNA = deoxyribose and RNA = ribose. To start, DNA stands for deoxyribonucleic acid, while RNA stands for ribonucleic acid. If you are asking what the difference between the two is, here you go.
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