11. Soils with high clay contents or small particle sizes and high dimers . 12. Catechin monomers, dimers , and trimers ( oligomers ) are colorless. 13. Breaking the dimer stops the ionic current through the membrane. 14. Microtubules are assembled from dimers of ?-and ?-tubulin. 15. Two molecules of ApoC-II can attach to each LPL dimer . 16. Dimer formation of the two ABC domains of transporters requires ATP binding.17. Within each dimer 2 miraculin glycoproteins are linked by a disulfide bridge. 18. This type of bonding has also been observed in neutral phenalene dimers . 19. The formation of the sorbitol dehydrogenase tetramer from its monomers via dimers . 20. The core structure of the hexamer is a stacked dimer of trimers.