100.0 MB (6.1 MB compressed)
6784 x 5152 pixels
57.4 x 43.7 cm ⏐ 22.6 x 17.2 in (300dpi)
RUSSELL KIGHTLEY / SCIENCE PHOTO LIBRARY RUSSELL KIGHTLEY / SCIENCE PHOTO LIBRARY
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DNA molecule. Abstract illustration of a double stranded DNA (deoxyribonucleic acid) molecule unwinding. DNA is composed of two strands twisted into a double helix. Each strand consists of a sugar-phosphate backbone attached to nucleotide bases. There are four bases: adenine, cytosine, guanine and thymine, which are joined together by hydrogen bonds. DNA contains sections called genes that encode the body's genetic information.
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