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olchik [2.2K]
3 years ago
10

Why was DNA created and what makes up DNA

Biology
1 answer:
leva [86]3 years ago
7 0
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
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