BIO 206LLower division2 credit hours
BIO 206L Introductory Laboratory Experiments in Biology
Since 2011, BIO 206L has averaged 3.47 with 44% A’s. In Spring 2026 it averaged 3.77, above the 3.37 average for undergraduate BIO classes that term.
Registration detailsBefore you register
Listed for Spring 2027 · UT’s published schedule
UT prerequisites and restrictions
- Prerequisites
- Credit or registration for one of the following: Biology 311C, 311D, 315H, or 325H
- Catalog edition
- 2026–27
- Class hours a week
- 1 in class, 4 in lab
- Grading
- Letter grade or pass/fail, your choice
- Repeat for credit
- No
Grade distribution
Spring 2026: 895 letter grades, 3.77 average GPA, 69% A’s, 37 sections
Bars show the selected term. Short lines show all terms combined.
Grade counts
| Grade | Students | Share | All terms |
|---|---|---|---|
| A | 615 | 68.7% | 43.7% |
| A− | 117 | 13.1% | 15.8% |
| B+ | 72 | 8.0% | 13.5% |
| B | 57 | 6.4% | 13.1% |
| B− | 9 | 1.0% | 5.5% |
| C+ | 9 | 1.0% | 3.4% |
| C | 10 | 1.1% | 2.6% |
| C− | 2 | 0.2% | 1.3% |
| D+ | 1 | 0.1% | 0.3% |
| D | 1 | 0.1% | 0.2% |
| D− | 0 | 0.0% | 0.1% |
| F | 2 | 0.2% | 0.6% |
| Q, W, CR, and others | 10 | Not in the average | |
How have grades changed?
UT’s grade reports show 45 terms from Summer 2011 to Summer 2026 (14 falls, 15 springs, and 16 summers).
Grades by term
| Term | Sections | Letter grades | Average GPA | A’s |
|---|---|---|---|---|
| Summer 2026 | 3 | 50 | 3.81 | 72.0% |
| Spring 2026 | 37 | 895 | 3.77 | 68.7% |
| Fall 2025 | 37 | 910 | 3.70 | 62.5% |
| Summer 2025 | 3 | 54 | 3.50 | 59.3% |
| Spring 2025 | 33 | 806 | 3.84 | 79.9% |
| Fall 2024 | 33 | 777 | 3.79 | 73.6% |
| Summer 2024 | 3 | 55 | 3.67 | 63.6% |
| Spring 2024 | 33 | 815 | 3.81 | 79.5% |
| Fall 2023 | 31 | 710 | 3.85 | 83.5% |
| Summer 2023 | 2 | 26 | 3.51 | 42.3% |
| Spring 2023 | 39 | 921 | 3.54 | 51.4% |
| Fall 2022 | 38 | 811 | 3.45 | 45.6% |
| Summer 2022 | 4 | 77 | 3.49 | 45.5% |
| Spring 2022 | 38 | 844 | 3.18 | 30.1% |
| Fall 2021 | 39 | 804 | 3.42 | 44.9% |
| Summer 2021 | 6 | 84 | 3.11 | 20.2% |
| Spring 2021 | 37 | 806 | 3.56 | 51.1% |
| Fall 2020 | 36 | 796 | 3.54 | 51.5% |
| Summer 2020 | 7 | 150 | 3.61 | 51.3% |
| Spring 2020 | 36 | 746 | 3.71 | 60.7% |
| Fall 2019 | 37 | 878 | 3.38 | 33.8% |
| Summer 2019 | 4 | 59 | 3.24 | 28.8% |
| Spring 2019 | 34 | 758 | 3.40 | 29.4% |
| Fall 2018 | 38 | 854 | 3.41 | 34.2% |
| Summer 2018 | 6 | 92 | 3.28 | 20.7% |
| Spring 2018 | 37 | 764 | 3.37 | 36.0% |
| Fall 2017 | 30 | 652 | 3.42 | 27.3% |
| Summer 2017 | 6 | 94 | 3.58 | 45.7% |
| Spring 2017 | 41 | 840 | 3.44 | 38.7% |
| Fall 2016 | 28 | 632 | 3.37 | 22.8% |
| Summer 2016 | 6 | 100 | 3.38 | 23.0% |
| Spring 2016 | 42 | 832 | 3.43 | 36.4% |
| Fall 2015 | 28 | 578 | 3.24 | 16.3% |
| Summer 2015 | 5 | 70 | 3.41 | 31.4% |
| Spring 2015 | 39 | 811 | 3.41 | 40.6% |
| Fall 2014 | 29 | 584 | 3.25 | 19.0% |
| Summer 2014 | 6 | 83 | 3.20 | 20.5% |
| Spring 2014 | 41 | 892 | 3.37 | 35.4% |
| Fall 2013 | 26 | 478 | 3.32 | 24.3% |
| Summer 2013 | 6 | 68 | 3.33 | 13.2% |
| Spring 2013 | 36 | 780 | 3.29 | 30.9% |
| Fall 2012 | 27 | 522 | 3.12 | 10.3% |
| Summer 2012 | 6 | 79 | 3.24 | 17.7% |
| Spring 2012 | 27 | 514 | 2.92 | 7.6% |
| Summer 2011 | 4 | 48 | 3.48 | 22.9% |
What’s BIO 206L about?
The organizing principles of biology (such as molecular and cellular functions, reproduction, development, homeostatic mechanisms, and organismal physiology and behavior) are used within a comparative and evolutionary framework to train students in modern laboratory techniques, bioinformatics, experimental design, and interpretation of results. Biology 106M and 206L may not both be counted. One lecture hour and four laboratory hours a week for one semester.
Prepare for class
- Experimental design
- Biological lab methods
- Bioinformatics
- Interpreting results
Review · Practice writing a hypothesis that says what you will measure.
Self-check · You test whether light affects seedling growth. Why keep watering the same across groups?
Show the answer
Equal watering helps isolate the effect of light on growth.
Instructor evaluations
UT posts its course evaluation results as one public list per term. Open a term and look for BIO 206L in it: Spring 2026 · Fall 2025 · Summer 2025 · Spring 2025.
UT’s CES ratings search · Results before Fall 2022 · Syllabi and evaluations for BIO 206L
What comes before and after?
Courses named by UT
Leads to
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You can get credit for only one of these
Sources
The Spring 2027 listing comes from UT’s printed schedule, checked November 9, 2026.
Class details come from UT’s Biology catalog page, 2026–27 edition, checked October 27, 2026. Match requirements to your own catalog and degree plan.
Grades come from UT’s grade dashboard, updated October 27, 2026. UT leaves out some small classes to protect students’ privacy.
Each letter grade counts once. A− has its own bar. Subject averages cover the same subject, level, and term, including this class. How the averages are calculated.