So I completed a post-bac this past year mainly to boost up my science gpa as I was a science major at my undergrad (actually a double major in another humanities field). I'm reading many school's requirements and many state they want a Committee letter OR letters from major. Now I have a committee letter from the post-bac, and I also have some non-science letters (from my other major) from my undergrad and few from research and work that I want to use. I have one-science letter rec from undergrad that I didn't send in. Is this fine? do I need the undergrad letters from science?