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State ways in which RNA and DNA differ in chemical composition.

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1. Shape

DNA = a double helix

RNA = single stranded 

A double helix is a structure that has two sides and is twisted like a spiral staircase. It is the shape of DNA. DNA's sides are made of sugar (deoxyribose- hence the "D" in its name) and phosphate. While the interior is made of nucleic base pairs: adenine, thymine, cytosine, and guanine. 

2. Nucleic Acids

The interior nucleic bases ares: adenine (A), thymine (T), cytosine (C), guanine (G) and uracil (U).

DNA contains A, T, C, and G. In DNA, A pairs with T and G pairs with C. 

RNA contains A, U, C, and G. In RNA, A pairs with U and G remains with C.

3. Sugar

DNA: Deoxyribose

RNA: ribose 

4. Stability

DNA is  more stable

RNA  is less stable 

I hope this helps! :) 

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