Final answer:
Rock and roll disrupted the 1950s culture of conformity by promoting themes of rebellion and freedom, appealing to teenagers and bringing about the blurring of racial lines in society.
Step-by-step explanation:
Rock and roll had a significant impact on the culture of conformity of the 1950s. It provided a means for teenagers to express themselves and reject middle-class expectations. Teens were drawn to the themes of freedom and rebellion that were celebrated by rock and roll artists. The music also played a role in blurring racial lines, leading to social changes and helping in the fight against segregation. Rock and roll's influence extended from the music itself to how it reshaped social and racial interactions among the American youth.