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Racer Arturo (singleflips)
Race Number 25
Date Sun, 3 Feb 2019 01:00:15 +0000
Universe o4do0q2x8u
Speed 92 WPM Try to beat?
Accuracy 96.5%
Rank 2nd place (out of 2)
Opponents jyin (1st place)

Text typed:

The novel feature of the structure is the manner in which the two chains are held together by the purine and pyrimidine bases. The planes of the bases are perpendicular to the fiber axis. They are joined together in pairs, a single base from one chain being hydrogen bonded to a single base from the other chain, so that the two lie side by side with identical z-coordinates. One of the pair must be a purine and the other a pyrimidine for bonding to occur.
Molecular Structure of Nucleic Acids (other) by Watson and Crick (see stats)

Typing Review: