24.9 MB (7.1 MB compressed)
2382 x 3650 pixels
20.1 x 31.0 cm ⏐ 7.9 x 12.2 in (300dpi)
MICHAEL DUNNING / SCIENCE PHOTO LIBRARY MICHAEL DUNNING / SCIENCE PHOTO LIBRARY
DNA. Computer artwork of a DNA molecule wrapped around a human figure. DNA (deoxyribonucleic acid) is the molecule which carries the genetic code. It is found in all living things, and controls growth and development. It comprises two sugar-phosphate strands (red) joined by cross-linking bases (yellow). Four types of base are found in DNA, and their order on the strands determines an organism's characteristics.
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