One year introductory biology (usually BIOL 043L KS, BIOL 044L KS), or BIOL 040L KS and BIOL 044L KS or both semesters of the AISS course; one year general chemistry (usually CHEM 014L KS, CHEM 015L KS) or CHEM 029L KS, or CHEM 040L KS and CHEM 015L KS, or both semesters of the AISS course; four advanced courses in biology chosen in consultation with a member of the biology faculty. Must include at least two advanced courses with laboratory.