What are some career for someone with a major in Cellular and Molecular Biology?
If no grad school, basically research or teaching high school biology. However, many of these majors persue grad school in medicine, physical therapy, pharmacy, physician assistant, optometry, etc. And others go on to masters or phd in science field to persue a research career.
Pure science majors (bio, chem, physics, molec bio) are the type of degree where you usually need some grad school to get a legit career going.