Bachelor of Science (B.S.) Major in Biology

Minimum required: 120 semester credit hours

General Requirements

  1. The general education core curriculum courses are listed in the degree plan below along with the statewide component code number. See the General Education Core Curriculum section of this catalog for the Texas State requirements and options in the core curriculum, including Honors courses.
  2. Majors must complete a minimum of 36 advanced hours (3000 or 4000 level courses).
  3. Majors must select a minor from the approved list of Undergraduate Minors. The recommended minor is Chemistry or Biochemistry. Minor and electives should be chosen in consultation with the academic advisor.
  4. The minimum number of hours required for this degree program is 120. The number of elective hours a student will complete depends on the number of hours a student may need to achieve the required 120 total or 36 advanced hours.
  5. Nine semester credit hours must be writing intensive (WI).
  6. If two years of the same foreign language were taken in high school, then no additional language hours will be required. In the absence of such high school language, two semesters of the same modern language must be taken at the college level.

Course Requirements 

First SemesterHoursSecond SemesterHours
BIO 1330 (Life & Physical Sciences Component Code 030)3BIO 1331 (Life & Physical Sciences Component Code 030)3
BIO 11301BIO 11311
CHEM 11411CHEM 11421
CHEM 13413CHEM 13423
US 11001ENG 1320 (Communication Component Code 010)3
ENG 1310 (Communication Component Code 010)3HIST 1310 (American History Component Code 060)3
POSI 2310 (Government/Political Science Component Code 070)3 
 15 14
First SemesterHoursSecond SemesterHours
BIO 24504BIO 2400, 2410, or 24114
CHEM 21411CHEM 21421
CHEM 23413CHEM 23423
Mathematics Component Code 02013Mathematics13
HIST 1320 (American History Component Code 060)3ART 2313, DAN 2313, MU 2313, or TH 2313 (Creative Arts Component Code 050)3
 POSI 2320 (Government/Political Science Component Code 070)3
 14 17
First SemesterHoursSecond SemesterHours
BIO 44164BIO Advanced Physiology24
PHYS 13153PHYS 13253
PHYS 11151PHYS 11251
COMM 1310 (Component Area Option Code 090/091)3ENG Literature (Component Area Option Code 090/094)3
PHIL 1305 or 1320 (Language, Philosophy & Culture Component Code 040)3Social & Behavioral Sciences Component Code 0803
 14 14
First SemesterHoursSecond SemesterHours
BIO Advanced Electives38-9BIO 43013
Minor/Advanced Electives37-8BIO Advanced Electives36-7
 Minor/Advanced Electives32-3
 16 16
Total Hours: 120

Math requirements may be satisfied by taking MATH 2321 and MATH 2328, or MATH 2321 and MATH 2331, or MATH 2471 and MATH 2472


Choose one Advanced Physiology course from: BIO 3421 (fall or spring), BIO 3465 (fall), or BIO 4441 (spring).


BIO 4299 requires faculty and departmental chair approval to count toward the 15 hours of advanced BIO electives. Biology advanced electives cannot include: BIO 3351, BIO 4305, BIO 4402, BIO 4403, and BIO 4408