DNA strands should repel each other — it took 20 years for scientists to finally discover the tiny molecular “zipper” that brings them together

Scientists have observed DNA molecules overcoming electrical repulsion to zip together. Positively charged metal ions act as bridges, facilitating this molecular connection. This finding supports a long-standing theory about DNA strand interaction. The research offers new insights into genome organization and regulation. This discovery could also influence future DNA-based nanotechnology designs.