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The structure of what is nuclo tide ,thread wrapped in the retila of DNA |
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Answer» What are nucleic acids DESCRIBE the structure of DNA? The DNA MOLECULE is a polymer of nucleotides. Each NUCLEOTIDE is COMPOSED of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands. |
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