Abstract
The physical properties of high-molecular-weight poly G are described. While interaction with poly C gives a very stable 1:1 complex, no indication of complex formation with a stoichiometry of 2G:1C, or 1G:2C, is observed. However, degraded poly G readily forms a complex 2G:1C. Poly G and poly BrC also form a 1:1 complex which is even more stable than that between poly G and poly C.