Is it possible to list alternative major from the same school? For example the Computer Science from school of engineering with CS with Bioinformatics from the same school?
Yes, you can list an alternate major within the same department. Keep in mind that the MAE department says:
“We highly recommend that freshman applicants list a non-oversubscribed open major as their alternate choice on the UC Undergraduate Application. If a student lists an oversubscribed major as both the first and alternate choices on the UC application, and is not admitted to the first choice major, the Office of Admissions and Relations with Schools will place the student in the Undeclared major. The Undeclared major is not affiliated with the Jacobs School. However, students admitted as undeclared may later seek admission to an open engineering major.”