If your main goal is to become a registered nurse, you would need to get a Bachelor of Science in Nursing, so your major would be nursing. This is a program you have to apply for, but admission requirements vary by school. Getting a biology degree wouldn't benefit you if you wanted to be a nurse, but could lead you to med school to become a doctor.
This professional recommends the following next steps:
- Decide if you want to be a nurse or a doctor