3 ms·

The original W&C model did not postulate three H-bonds between G and C, but two, which is one of the reasons why it is only "almost" correct.

• dekhn 6y ago
  Good point, I updated my comment to reflect that. Here's a nice writeup: https://www.nature.com/articles/439539a https://www.nature.com/articles/439539a
  • pcrh 6y ago
    Thanks! That was interesting.