Hollis-Jefferson had a high-flying dunk on an alley-oop pass on an inbounds play, then threw down a tomahawk in transition after Johnson tracked down Cobbs to block his layup from behind at the other end.
Arizona made 18 of 36 shots to lead 44-29 at halftime. Johnson had 12 points on 5-of-8 shooting, four rebounds and three assists while leading the top of Arizona's defense with McConnell at the top.
"It's always good when everybody is hitting shots," Johnson said. "Whenever you hit a shot, it feels good and you hit a few in a row, it's great for your confidence."
The Wildcats quickly built the lead to 20 points in the second half, but Cal showed a little resiliency, going on an 11-0 run that cut Arizona's lead to 53-44.
That was as close as the Bears would get.
Arizona turned up the pressure again, McConnell hit a 3-pointer in transition and Gordon soared in for another dunk, putting the Wildcats back comfortably ahead, 70-52.
"We can't afford a 15-point deficit against a team like Arizona," Cobbs said. "We played well for a stretch and cut the lead by eight, but they executed well on offense and I give them credit."