BA in Biological Science

Units required for Major: 62-66

Program Description

The Department of Biological Sciences offers both undergraduate and graduate degree programs. At the undergraduate level, students are able to earn a Bachelor of Arts degree, a Bachelor of Science degree, or a Minor in Biological Sciences.

Pre-Major Requirements

The Biological Sciences program at Sacramento State is one of the most highly sought after programs in Northern California. Due to the large number of applications, the program is now officially impacted. Students wishing to become Biological Science majors must complete a series of required lower division and then must apply for admission to the program. Check the department website for requirements, and it is highly recommended that interested students speak with an advisor at the Natural Sciences Advising Center (NSAC) as soon as possible.

Freshmen interested in the major are admitted as pre-Biological Science majors.

To change to the Biological Sciences major, pre-major students are required to complete the following courses and grade requirements and submit a Declaration of Major form to the Biological Science Department Office along with transcript copies.

  1. Completion of the following lower division "pre-major" courses with a minimum "C" or better. Only first or second attempt will be considered:
    BIO 1Biodiversity, Evolution and Ecology (or equivalent)5
    BIO 2Cells, Molecules and Genes (or equivalent)5
    CHEM 1AGeneral Chemistry I (or equivalent)5
    STAT 1Introduction to Statistics (or equivalent)3
    ENGL 5Accelerated Academic Literacies (or equivalent)3
  2. Overall GPA of 2.5 based on the pre-major courses listed above.
  3. Minimum of 30 units completed at the college level.

Program Requirements

Required Lower Division Courses (37-41 Units)
BIO 1Biodiversity, Evolution and Ecology5
BIO 2Cells, Molecules and Genes5
CHEM 1AGeneral Chemistry I5
CHEM 1BGeneral Chemistry II5
Select one of the following:3 - 6
Organic Chemistry Lecture--Brief Course 1
Organic Chemistry Lecture I
Organic Chemistry Lecture II
Select one of the following:3 - 4
Calculus I for the Social and Life Sciences
Calculus I
PHYS 5AGeneral Physics: Mechanics, Heat, Sound4
PHYS 5BGeneral Physics: Light, Electricity and Magnetism, Modern Physics4
STAT 1Introduction to Statistics3
Required Upper Division Courses (22 Units)
BIO 100Introduction to Scientific Analysis2
BIO 121Molecular Cell Biology3
BIO 139General Microbiology4
BIO 160General Ecology3
BIO 184General Genetics4
BIO 188Evolution3
CHEM 161General Biochemistry 23
Elective Courses (3 Units)
Select one course from the following Structure and Function Electives:3
Physiology of Human Reproduction
Advanced Human Anatomy
Comparative Vertebrate Morphology
Developmental Biology
Plant Anatomy and Physiology
Systemic Physiology
Cardiovascular, Respiratory and Renal Physiology
Total Units62-66

CHEM 24 and CHEM 124 may be taken in lieu of CHEM 20. (CHEM 124 is not counted toward the 24 upper division unit requirement in the major.)


CHEM 160A and CHEM 160B may be taken in lieu of CHEM 161. Only three units of the package may be counted toward the upper division major requirement.


  • Pre-Health Professional students should take the Chemistry and Math requirements as stated in the Pre-Health Professional Program section of this catalog.