The basic medical college focuses on medicine, while the college of life sciences focuses on basic subject research. Their majors seem to overlap, but there are still great differences.
For example, it is also the research of developmental biology, and the basic medical college focuses on the content related to disease and treatment, and focuses on the promotion of research conclusions to medical practice. This is not the case in the School of Life Sciences, which may include plants, insects and so on, and the research conclusions may not be applicable to people.
For another example, everyone studies entomology. Entomology in basic medical colleges is dominated by disease-related vectors, and the College of Life Sciences is not limited to this.
For example, everyone studies viruses, and basic medical schools only pay attention to those viruses that cause or may cause diseases to the human body. As for those plant viruses on tobacco and wheat, they are generally not studied.
There are also studies on bacteria and fungi, and basic medical schools also study them from the perspective of human health. The School of Life Sciences may study the application of these bacteria and fungi in the food industry.
In a word, the research scope of basic medical college is relatively narrow, and it serves medicine. It's up to you.