Korie Lucious added 16 points and Niang Georges 15 for the Cyclones (18-8, 8-5 Big 12).
After doing damage from behind the arc, Iowa State took advantage of a Baylor defense roaming the perimeter. After two free throws gave the Cyclones a 74-67 lead with 3:47 remaining, their next four baskets were scored in the paint, including two layups and an alley-oop dunk by McGee.
Isaiah Austin hit a 3-pointer for Baylor to make the score 84-79 with 23 seconds to play. After a missed Iowa State free throw, Jackson was fouled with 13.7 seconds left, but missed both free throws.
Jackson, who scored in double figures in 31 consecutive games before being held to seven points in a loss to Kansas State on Saturday, scored 10 points in the first 10 minutes on Wednesday.
High school junior Zach Brown, a 7-footer from Miami, has rescinded his commitment to UConn, sources told ESPN.
Reserve center Akolda Manyang has been charged with felony aggravated assault after being accused of punching a man in the face without provocation.
Should the 76ers take Ben Simmons No. 1? What if they get the Lakers' pick, too? And how does the rest of the top 10 shake out? Our Insiders run their latest mock draft, with Philly on the clock.