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One proton
Distal humerus fractures are less common but frequently require surgical intervention
The floating ribs have no ventral attachment at all
a tube (nanotube)
the choice is about format and tone
DNA necklace H | gold vermeil pp_anatomy One protonDNA necklace H 18k gold vermeil The double helix, in horizontal orientation, in 18k gold vermeil. Both backbones spiral at full width with the major and minor grooves visible. The form that makes the helix easiest to read. The Science Behind the DNA Helix The major groove and minor groove are the two channels running along the helix where the backbone strands are farther apart or closer together. The major groove is wide enough for proteins to read