Students by academic programs (A) and by class years (B) in the Build-a-Genome and Build-a-Genome Mentor courses. (A) 1, Biology; 2, biomedical engineering; 3, chemical and biological engineering; 4, computer science; 5, other science; 6, other humanities. (B) 1, Freshman; 2, sophomore; 3, junior; 4, senior; 5, graduate/postgraduate.