Which of the following in NOT true of the nuclear envelope? () A: The nuclear envelope is exactly like other cellular membranes. B: The nuclear envelope separates the genetic material from the cytoplasm. C: The nuclear envelope is a pair of concentric membranes. D: The nuclear envelope is studded with pores.

How did rock music influence American culture? A: Defining young people in their struggle to differentiate themself from their parents. B: Many dance craze are still common today started out as people dancing to rock music. C: All the other three choices D: Symbol of rock, like black leather jackets and studded boots is seen as cool and fashionable.