BIO 325Upper division3 credit hours
BIO 325 Genetics
Since 2011, BIO 325 has averaged 3.13 with 34% A’s. In Spring 2026 it averaged 2.88, below the 3.37 average for undergraduate BIO classes that term.
- Credit hours
- 3
- Level
- Upper division
- Class hours a week
- 4
- Grading
- Letter grade or pass/fail, your choice
- Repeat for credit
- No
- Latest grades
- Summer 2026
What grades did students get?
Spring 2026: 584 letter grades, 2.88 average GPA, 30% A’s, 24 sections
Bars show the selected term. Short lines show all terms combined.
Grade counts
| Grade | Students | Share | All terms |
|---|---|---|---|
| A | 174 | 29.8% | 34.4% |
| A− | 60 | 10.3% | 12.0% |
| B+ | 54 | 9.2% | 9.6% |
| B | 59 | 10.1% | 14.3% |
| B− | 47 | 8.0% | 7.2% |
| C+ | 44 | 7.5% | 5.1% |
| C | 49 | 8.4% | 8.1% |
| C− | 20 | 3.4% | 3.3% |
| D+ | 15 | 2.6% | 1.2% |
| D | 22 | 3.8% | 1.8% |
| D− | 8 | 1.4% | 0.7% |
| F | 32 | 5.5% | 2.3% |
| Q, W, CR, and others | 112 | Not in the average | |
How have grades changed?
UT’s grade reports show 46 terms from Summer 2011 to Summer 2026 (15 falls, 15 springs, and 16 summers).
Spring 2026 2.88 average · 30% A’s · 584 grades
Every term
| Term | Sections | Letter grades | Average GPA | A’s |
|---|---|---|---|---|
| Summer 2026 | 5 | 305 | 3.34 | 35.4% |
| Spring 2026 | 24 | 584 | 2.88 | 29.8% |
| Fall 2025 | 55 | 1,482 | 3.28 | 40.8% |
| Summer 2025 | 4 | 275 | 3.45 | 25.8% |
| Spring 2025 | 22 | 400 | 2.81 | 22.5% |
| Fall 2024 | 32 | 1,341 | 3.28 | 46.5% |
| Summer 2024 | 6 | 169 | 3.72 | 66.9% |
| Spring 2024 | 18 | 558 | 2.85 | 24.9% |
| Fall 2023 | 55 | 1,612 | 3.29 | 37.8% |
| Summer 2023 | 4 | 175 | 3.71 | 65.7% |
| Spring 2023 | 12 | 638 | 2.69 | 16.5% |
| Fall 2022 | 68 | 1,377 | 3.16 | 38.3% |
| Summer 2022 | 4 | 124 | 3.61 | 55.6% |
| Spring 2022 | 26 | 481 | 2.83 | 20.0% |
| Fall 2021 | 68 | 1,497 | 3.34 | 46.4% |
| Summer 2021 | 5 | 129 | 3.61 | 63.6% |
| Spring 2021 | 31 | 425 | 3.17 | 31.3% |
| Fall 2020 | 65 | 1,429 | 3.55 | 56.9% |
| Summer 2020 | 7 | 229 | 3.74 | 69.0% |
| Spring 2020 | 35 | 572 | 3.50 | 47.4% |
| Fall 2019 | 69 | 1,421 | 3.19 | 36.2% |
| Summer 2019 | 7 | 133 | 3.24 | 50.4% |
| Spring 2019 | 35 | 678 | 3.01 | 30.1% |
| Fall 2018 | 68 | 1,301 | 3.24 | 38.5% |
| Summer 2018 | 8 | 163 | 3.19 | 36.2% |
| Spring 2018 | 36 | 712 | 3.08 | 24.9% |
| Fall 2017 | 56 | 1,094 | 3.10 | 27.6% |
| Summer 2017 | 8 | 223 | 3.14 | 32.7% |
| Spring 2017 | 37 | 761 | 3.01 | 26.1% |
| Fall 2016 | 46 | 973 | 3.14 | 34.0% |
| Summer 2016 | 8 | 195 | 3.11 | 36.9% |
| Spring 2016 | 26 | 549 | 2.90 | 23.3% |
| Fall 2015 | 40 | 899 | 2.92 | 23.2% |
| Summer 2015 | 4 | 147 | 3.29 | 53.7% |
| Spring 2015 | 36 | 638 | 2.89 | 25.4% |
| Fall 2014 | 50 | 1,061 | 2.86 | 21.6% |
| Summer 2014 | 4 | 126 | 2.72 | 25.4% |
| Spring 2014 | 34 | 540 | 2.88 | 30.9% |
| Fall 2013 | 54 | 1,223 | 2.99 | 28.8% |
| Summer 2013 | 7 | 184 | 3.13 | 38.0% |
| Spring 2013 | 38 | 667 | 2.88 | 24.9% |
| Fall 2012 | 47 | 1,111 | 3.03 | 27.0% |
| Summer 2012 | 8 | 136 | 3.00 | 27.2% |
| Spring 2012 | 33 | 644 | 2.95 | 23.1% |
| Fall 2011 | 47 | 1,044 | 3.03 | 28.8% |
| Summer 2011 | 8 | 148 | 2.97 | 21.6% |
What’s BIO 325 about?
Basic principles of Mendelism, molecular genetics, structure and function of genes and chromosomes, populations and evolution. Biology 325 and 325H may not both be counted. Three lecture hours and one discussion hour a week for one semester.
Prerequisites
Biology 311C and 311D with a grade of at least C- in each and credit or registration for Statistics and Data Sciences 320E, 321, or 302F.
What comes before and after?
Prerequisites
This class
Leads to
BIO 325LLaboratory Experience in Genetics3.49INB 365SHuman Systems Physiology3.20PBH 354Epidemiology I3.27MBS 326RGeneral Microbiology3.27PBH 358DHealth Policy and Health Systems3.45PBH 334Global Health3.61
Show 103 more
INB 446LHuman Microscopic and Gross Anatomy3.43BIO 337Selected Topics in Biology3.45PBH 356Health Behavior Theory and Practice3.70MBS 320Cell Biology3.36INB 370Evolution3.31BIO 377Undergraduate Research3.86INB 165UHuman Systems Physiology Laboratory3.29BIO 177Undergraduate Research3.88PBH 338Environmental Health3.58MBS 326MIntroductory Medical Microbiology and Immunology3.49INB 373Ecology3.48INB 346Human Biology3.62INB 321GPrinciples of Computational Biology3.79MBS 344Molecular Biology3.19BIO 170CTopics in Conference Course3.80MBS 350Developmental, Stem Cell, and Regenerative Biology3.30MBS 177Undergraduate Research3.84INB 359KPrinciples of Animal Behavior3.23MBS 360KImmunology3.62PBH 363Project Management, Planning, and Evaluation3.88NEU 367VEvolutionary Neurobiology3.67BIO 395FGenetics3.44MBS 366Microbial Genetics3.58MBS 366RMolecular Genetics and Medicine3.44MBS 330Molecular Biology of Animal Viruses3.40INB 349PPandemic Science3.84MBS 361Human Infectious Diseases3.65INB 377Undergraduate Research3.91MBS 361LClinical Bacteriology Laboratory3.81MBS 327GGenomics3.70MBS 325THuman Genetics2.74INB 322Structure, Physiology, and Reproduction of Seed Plants3.33INB 353SSleep Science3.72MBS 336Tumor Biology3.27MBS 260LImmunology Laboratory3.87MBS 331LLaboratory Studies in Molecular Biology3.79BIO 456LLimnology and Oceanography3.10INB 440LBiology of Birds3.70MBS 377Undergraduate Research3.81MBS 328Introductory Plant Physiology3.24MBS 339MBacterial Behavior and Signaling Mechanisms3.62MBS 350MPlant Molecular Biology3.34INB 375Conservation Biology3.42MBS 337Topics in Biology3.61MBS 356EEpigenetics and Epitranscriptomics3.80INB 361TComparative Animal Physiology3.81INB 364Microbial Ecology3.55BIO 372CBiology Peer Mentors in Research/Teaching3.82BIO 337JComputational Biology Laboratory3.62BIO 137Selected Topics in Biology3.94NEU 367CCellular and Molecular Bases of Neural Development3.60INB 463LPlant Systematics3.37INB 337Topics in Biology3.14INB 453LEntomology3.81INB 369LHerpetology3.65INB 177Undergraduate Research3.92INB 351Economic Botany3.67INB 359LAnimal Behavior Laboratory3.71INB 369FField Herpetology3.69INB 455LVertebrate Natural History3.69MBS 367CCellular and Molecular Bases of Neural Development3.31BIO 237Selected Topics in BiologyBIO 270CTopics in Conference CourseBIO 277Undergraduate ResearchBIO 370CTopics in Conference CourseBIO 437Selected Topics in BiologyBIO 470CTopics in Conference CourseCH 395FGeneticsINB 137Topics in BiologyINB 237Topics in BiologyINB 277Undergraduate ResearchINB 321LAquatic EntomologyINB 323Mathematical Modeling for BiologyINB 324Survey of the Plant KingdomINB 345EEndocrinologyINB 352Reproductive Biology of Flowering PlantsINB 353FField EntomologyINB 354LIchthyologyINB 359JBehavioral EcologyINB 371LExperimental PhysiologyINB 374Plant Anatomy with Histological TechniquesINB 437Topics in BiologyINB 438LAnimal CommunicationINB 448LInvertebrate BiologyINB 456LLimnology and OceanographyINB 471Introduction to SystematicsINB 471GNatural History Museum ScienceINB 478LComparative Vertebrate AnatomyMBS 137Topics in BiologyMBS 237Topics in BiologyMBS 277Undergraduate ResearchMBS 320LCell Biology LaboratoryMBS 327DEmerging Infectious DiseasesMBS 328DDiscovery Laboratory in Plant BiologyMBS 349LExperiments in Developmental BiologyMBS 368RSupervised Capstone ResearchMBS 437Topics in BiologyMNS 440Limnology and OceanographyNEU 361TComparative Animal PhysiologyNTR 365.2Nutrition and GenesPBH 320Topics in Health Informatics and Health Information TechnologyPBH 330Topics in Public HealthPBH 361PPublic Health Internship
You can get credit for only one of these
More BIO classes
How we got this
Class details come from UT’s Biology catalog page, checked October 27, 2026.
Grades come from UT’s grade dashboard, updated October 27, 2026. UT leaves out some small classes to protect students’ privacy. Past grades describe earlier terms; your section, instructor, and effort shape yours.
We count each A–F grade once. A’s counts A grades, and A− has its own bar. Subject averages use every letter grade in that subject and level that term, including this class. How the averages are calculated.
Before you register
Sections, times, and seats change every term. Check BIO 325 in UT’s class schedule for the semester you’re planning.