The Bears (20-2, 7-2 Big 12) were up by four points with 5 minutes left before A&M used a 9-3 run capped by a short jump shot by David Loubeau to take a 60-58 lead with 29 seconds remaining.
Jackson’s second 3 of the game put the Bears on top before A&M’s Elston Turner missed a 3-pointer forcing the Aggies (12-9, 3-6) to foul.
Jackson missed his first free throw attempt, but was fouled again after the rebound and made the insurance shots.
Loubeau had 16 points for Texas A&M, which was without two starters.
The win gives Baylor its first 7-2 conference start since 1968-69 and its fourth 20-win season in the last five.
In Lawrence, Thomas Robinson had 20 points and 17 rebounds to lead Kansas.
The junior forward had four assists and a couple of blocks for the Jayhawks (18-4, 8-1 Big 12), who responded to their first conference loss last Saturday at Iowa State by outscoring the Sooners 50-31 in the second half.
Tyshawn Taylor had 21 points, Jeff Withey added 15 and Travis Releford had 12 as Kansas tuned up for a high-profile showdown at No. 4 Missouri on Saturday.
Romero Osby scored 19 points, Steven Pledger had 17 and Andrew Fitzgerald finished with 14 for the Sooners (13-8, 3-6), who were within 34-31 at halftime.
The Jayhawks haven’t lost to Oklahoma in the last nine meetings, and the last 10 at Allen Fieldhouse, where they have won 19 straight overall. They have also gone 225 games without consecutive defeats, the longest streak in the nation. Duke is next at 110 games.
In Las Vegas, Oscar Bellfield and Chace Stanback both scored 16 points for UNLV.
Bellfield was 4 of 8 from beyond the 3-point line in matching a season-high for points he set earlier this season against then-No. 1 North Carolina.
Anthony Marshall and Mike Moser scored 13 points each for the Runnin’ Rebels (21-3, 5-1 Mountain West Conference). Moser fell two rebounds shy of a double-double, ending a four-game personal streak for the reigning conference player of the week.
The Rams (14-7, 3-3) came within two points of UNLV after starting the second half on an 11-0 run. But the Rebels responded with a 15-4 spurt started by Stanback and Marshall to put the game out of reach.
Wes Eikmeier led Colorado State with 18 points, while Dorian Green scored 15.
In Omaha, Doug McDermott scored 17 of his 25 points in the first half to lead six Creighton players in double figures.
The Bluejays (21-2, 11-1 Missouri Valley Conference) won their 11th straight overall and fourth in a row against the Redbirds (14-9, 6-6).
Creighton broke out to a 17-2 lead making eight straight shots and 10 of its first 11, and McDermott was in double figures inside 8 minutes.
Grant Gibbs had 12 points and seven assists, Jahenns Manigat and Will Artino added 11 points each and Gregory Echenique and Josh Jones had 10 apiece.
Tyler Brown had 21 points and Bryant Allen added 14 for the Redbirds.
In Washington, Hollis Thompson regained his shooting touch with 18 points, and Georgetown held Connecticut to season lows in scoring and shooting in its fourth straight loss.
Thompson went 7 for 15 from the field and grabbed nine rebounds. The Big East’s top 3-point shooter went 3 for 7 behind the arc, matching the number of 3s from his last three games combined.
The Hoyas (17-4, 7-3), bouncing back from a subpar effort in a loss at Pittsburgh, led by 10 points at halftime and didn’t allow the Huskies to get closer than six the rest of the way.
Henry Sims had 13 points for Georgetown and Jason Clark added 11.
Andre Drummond scored 18 points, and Jeremy Lamb had 14 for the Huskies (14-7, 4-5), who shot 30 percent from the field in their first game since falling out of the Top 25.
In San Diego, Jamaal Franklin had 16 points and Chase Tapley added 14 for San Diego State, which rallied from a 12-point deficit early in the second half.
The Broncos could have won it but a wide-open 3-point attempt by Thomas Bropleh from the baseline rimmed out at the buzzer. Anthony Drmic and Tre Nichols scored 17 apiece for Boise State, which lost its seventh straight game.
The Aztecs (19-3, 5-1 Mountain West Conference) used a 14-0 run in the second half to take control.
Boise State (10-11, 0-6) made the first two baskets of the second half to take a 37-25 lead, its biggest of the night. But the Broncos scored just 19 points the rest of the way.
San Diego State rebounded after a dismal 17-point loss at Colorado State on Saturday.
In Ann Arbor, Michigan, Trey Burke scored 18 points, and Michigan raced to a 20-point first-half lead.
The Wolverines (17-6, 7-3 Big Ten) remained unbeaten at home. They got off to a quick start after last weekend’s loss at No. 3 Ohio State, scoring the first 13 points and taking a 28-8 lead.
Indiana (17-6, 5-6) twice fought back within two points in the second half, including at 52-50 with 3:20 remaining. Tim Hardaway Jr. hit a big 3-pointer for Michigan, and after Indiana’s Derek Elston missed the front end of a 1-and-1, Stu Douglass made a 3-pointer to put the Wolverines up by eight.
Jordan Hulls scored 18 points for Indiana, which has lost five of its last seven.
Michigan had only one turnover in the first half, while Indiana had eight. There were eight fouls called in the first half and 25 in the second.
In Tallashassee, Florida, Michael Snaer scored 21 points and Bernard James added 13 as Florida State won its sixth straight.
The victory gives Florida State (15-6, 6-1) its best start in league play since joining the ACC for the 1991-92 season and it keeps the Seminoles tied with North Carolina for first place. Duke is right behind at 5-1.
Snaer scored 16 points in the second half to help awaken a slumbering offense that managed to shoot just 34.8 percent in the first half. The 6-foot-4 junior made 5 of 7 from 3-point distance and has made 11 of his last 13 tries from beyond the arc, including a buzzer-beating game-winner at Duke on Jan. 21.
Georgia Tech (8-14, 1-7) led 25-24 at halftime despite not having scoring and rebounding leader Glen Rice Jr., who missed the game with a foot injury.
Brandon Reed, who was 4 of 8 from 3-point distance, scored a season-high 18 points and Daniel Miller added 10 for the Yellow Jackets, who lost their sixth straight.
