The NEET UG syllabus is primarily based on the curriculum of Physics, Chemistry, and Biology taught in Classes 11 and 12 according to the NCERT and CBSE guidelines. The syllabus is finalized by the National Medical Commission (NMC) after reviewing various state board and national curricula to ensure fairness for students across different education boards. Most questions in the exam are conceptual and directly related to topics covered in the NCERT textbooks.