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43.5 MB (1.9 MB compressed)
4500 x 3375 pixels
38.1 x 28.4 cm ⏐ 15.0 x 11.2 in (300dpi)
ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
DNA molecule. Computer model of part of a molecule of deoxyribonucleic Acid (DNA). DNA contains the inherited instructions that produce a living organism. The DNA molecule is made of two strands of atoms twisted into a helical shape. Each strand consists of an outer sugar-phosphate backbone (yellow), from which nucleotide bases project (blue-red). The four types of base link in complementary pairs. Adenine links with thymine, and cytosine with guanine.
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