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Tuatara: Volume 12, Issue 2, July 1964
Fib. 17: Base — sugar — phosphate molecules of DNA linked longitudinally as chains. The chains are linked transversely by hydrogen bonds (•) across complementary bases (b and bc). S = sugar, P = phosphate, molecules. Fig. 18: Watson & Crick's model of the DNA molecule. The helix is formed by a sugar-phosphate backbone. Paired complementary bases are indicated by transverse bars. Fig. 19: Illustration of specificity imposed upon the DNA molecule by complementary base pairing. A = adenine, T = th…
Fib. 17: Base — sugar — phosphate molecules of DNA linked longitudinally as chains. The chains are linked transversely by hydrogen bonds (•) across complementary bases (b and bc). S = sugar, P = phosphate, molecules. Fig. 18: Watson & Crick's model of the DNA molecule. The helix is formed by a sugar-phosphate backbone. Paired complementary bases are indicated by transverse bars. Fig. 19: Illustration of specificity imposed upon the DNA molecule by complementary base pairing. A = adenine, T = thymine. G = guanine, C — cytosine.