By JANIE McCAULEY
AP Sports Writer

SAN FRANCISCO (AP) – Aldon Smith’s high-flying defense gave Colin Kaepernick all kinds of extra chances in his first career NFL start.

And the Kaepernick looked little like a backup in delivering on nearly every one of those opportunities under the lights on football’s big stage.

The strong-armed Kaepernick passed for 243 yards and two touchdowns in place of the injured Alex Smith, Aldon Smith had 5