Final answer:
During the evolution of the human Y chromosome, paracentric inversions do not occur, while gene duplications, translocations, and inversions are assumed to occur.
Step-by-step explanation:
During the evolution of the human Y chromosome, it is believed that all of the following events occur except for paracentric inversions. Gene duplications, translocations, and inversions are all assumed to occur during the evolution of the human Y chromosome.