Question

plzz give me explanation of DNA structure




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Answer 1

Answer:

DNA is made up of molecules called nucleotides. Each nucleotide 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). ... To fit inside cells, DNA is coiled tightly to form structures we call chromosomes.

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