What is the relationship between Rick and Morty in the show "Rick and Morty"?

In the show "Rick and Morty," the relationship between Rick and Morty is that of a grandfather and grandson. Rick Sanchez is the eccentric and brilliant scientist who takes his grandson, Morty Smith, on dangerous and often bizarre adventures across the universe. Despite their vastly different personalities, Rick's guidance and teachings often lead Morty to discover new truths about the universe and himself. Their bond grows stronger throughout the show as they navigate various dimensions, encountering aliens, portals, and existential dilemmas, showcasing a unique dynamic between a wise, aging scientist and an impressionable teenage boy.