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DNA molecule, illustration
Illustration of a double stranded DNA (deoxyribonucleic acid) molecule. 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 (A), cytosine (C), guanine (G), and thymine (T), which are joined together by hydrogen bonds. DNA contains sections called genes that encode the body's genetic information., by NEMES LASZLO/SCIENCE PHOTO LIBRARY
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0.3 MB
724 x 483 px
6.1 x 4.1 cm
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19.4 x 12.9 cm
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61.3 x 40.9 cm
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