Because rock has origins in blues, R&B, and gospel and in the 60's many rock artists were highly influenced by blues artists, rock music has many of the same elements as blues and gospel. For example, the 12-bar blues structure is prominent in rock songs. Also the use of bending guitar strings and bottleneck slides became a staple of rock music, although these styles were created by blues artist years earlier.
Because rock has roots in blues, R&B, and gospel, and in the 60's many rock artists were heavily influenced by blues musicians, rock music shares numerous elements with blues and gospel. For instance, the 12-bar blues structure is common in rock songs. Additionally, techniques like bending guitar strings and using bottleneck slides are hallmarks of rock music, even though these styles originated among blues artists decades prior.