dna molecule with the double polynucleotide spiral closeup view illustration |
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| navigate by keyword : acgt acid adenine base pairs biochemistry cell chemistry chloroplast chromosome cloning cytosine deoxyribonucleic dna sequencing double helix embryo evolution gene map genes genetic mutation genome gold background guanine hereditary human structure long chain helical mitochondria mitochondrion molecular molecule nitrogen containing nitrogenous nuclei nucleic acids nucleobases polynucleotide purines pyrimidines replication ribonucleic ribose phosphate backbone rna spiral stem thymine |
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| Deoxyribonucleic acid (DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. |
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