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53.6 MB (839.0 KB compressed)
5000 x 3750 pixels
42.4 x 31.8 cm ⏐ 16.7 x 12.5 in (300dpi)
ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
DNA molecule, conceptual computer artwork. DNA (deoxyribonucleic acid) consists of two strands (blue and yellow) of sugar phosphates forming a double helix (spiral). The strands are held together by interactions between nucleotide bases (represented as letters) on each strand. There are four types of nucleotide base, but only two base pairings are usually possible: adenine (A) to thymine (T), and cytosine (C) to guanine (G). This means each DNA strand is a complementary copy of the other, allowing DNA replication. The base sequence along the molecule is the inherited genetic code that controls growth and development. DNA is stored in cell nuclei.
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