Do you normally get transposition of the great vessels in premature babies?

No. Transposition is a birth defect that occurs in the fetus early as the heart is forming. Tgere is no increased risk because a baby is premature. I am also not aware that tga causes prematurity.
Tga. no this is an abnormal heart formation not related to prematurity.
TGA. Transposition of great arteries (tga) is developmental heart problem that happened during the first 35 days of embryo life. Premature babies and term babies can present with tga but prematurity is not a cause of tga.