TWU looks at last 60 hours, UTMB looks at last 90. Both look at the Math & Science GPA regardless of when the class was taken. Also, TWU will replace a low grade if you have taken a class over, UTMB averages the grades, for example - you took physics and got a C, then retook it and got an A, TWU acknowledges that you took it twice, but uses the A, UTMB will give you a B for the class.
Good Luck
Roxanne SPT
TWU Class of 2014