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laila [671]
3 years ago
13

DNA is made of molecules of nucleotides which are composed of

Biology
1 answer:
frez [133]3 years ago
6 0
DNA<span> structure. </span>DNA is made<span> up of </span>molecules<span> called </span>nucleotides<span>. Each </span>nucleotide<span>contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).</span>
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