Other options to look into include “bioengineering” and systems biology.
Ohio University Honors Tutorial College has a biology major with a lot of flexibility in terms of course focus: Biological Sciences | Ohio University
“In the sophomore and junior years, students take advanced tutorials each semester. Tutorial format, which may include directed readings, laboratory research, field research, etc., is determined by discussion between the student and the faculty tutor. There are no limits to the field of study, and upon permission, tutorials can be taken with a faculty tutor in any department on campus.”
One downside is that the engineering options at the school are limited to a bioinformatics degree.
One upside is that the HTC requires no gen eds other than a writing course. Also, a significant portion of the coa can be knocked off with merit scholarships. (Last I checked it was around $50k after? Not sure)
UCSB offers a similarly focused program in biology:
This is likely to be more selective and expensive than OU and will still require gen eds that her prior coursework may not transfer and fulfill.