Jimalita Tillman knew her daughter Dorothy Jean was gifted at a very young age. Home-schooled from age 7, Dorothy Jean took high school-level courses a year later and earned her first college diploma, an associate's degree, at age 10. She added a bachelor's degree at age 12 and an environmental science master's degree two years later, both online. Last year, at just 17 years old, Dorothy Jean earned a doctoral degree in integrated behavioral health from Arizona State University. Watching Dorothy Jean accomplish so much at a young age has been "humbling," her mother tells CNBC Make It.

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Persons: Jimalita Tillman, Dorothy Jean, Dorothy, Tillman, they'll, Esther Wojcicki, Cindy Graham, Graham, HuffPost, Michele Borba, That's Organizations: Arizona State University, Leadership Institute, CNBC, Bills Locations: Chicago