BIOL109

MICROBIOLOGY

Also listed under 5 other titles
  • LAB: MICROBIOLOGY
  • LAB:MICROBIOLOGY
  • Microbiology
  • LAB FOR MICROBIOLOGY
  • LAB FOR BIOL 109
Department
Biology
Terms offered
34
Data refreshed
Sep 29, 2026

Description

Introduces the fundamental principles and methods of microbiology with applications to the biomedical and environmental sciences. In the laboratory, students will isolate, cultivate, and characterize an unknown microorganism, and then identify the organism using modern molecular methods.

Syllabi

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Offering history & forecast 2016–2026

1996
2026
Sections offered by academic year and season, with estimated offering chances for future years above the divider
YearFallSpringSummerIntersession
2030 2030 Fall: 7% chance, medium confidence. Offered in 0 of 9 fall terms since 2018. 2030 Spring: 62% chance, medium confidence. Offered in every spring term since 2018. 2030 Summer: 7% chance, medium confidence. Offered in 0 of 9 summer terms since 2018. 2030 Intersession: 8% chance, medium confidence. Offered in 0 of 6 intersession terms since 2020.
2029 2029 Fall: 6% chance, medium confidence. Offered in 0 of 10 fall terms since 2017. 2029 Spring: 67% chance, medium confidence. Offered in every spring term since 2017. 2029 Summer: 6% chance, medium confidence. Offered in 0 of 10 summer terms since 2017. 2029 Intersession: 7% chance, medium confidence. Offered in 0 of 7 intersession terms since 2017.
2028 2028 Fall: 5% chance, medium confidence. Offered in 0 of 11 fall terms since 2016. 2028 Spring: 71% chance, medium confidence. Offered in every spring term since 2016. 2028 Summer: 5% chance, medium confidence. Offered in 0 of 11 summer terms since 2016. 2028 Intersession: 7% chance, medium confidence. Offered in 0 of 7 intersession terms since 2017.
2027 2027 Fall: 5% chance, high confidence. Offered in 0 of 12 fall terms since 2015. 2027 Spring: 74% chance, medium confidence. Offered in every spring term since 2015. 2027 Summer: 5% chance, high confidence. Offered in 0 of 12 summer terms since 2015. 2027 Intersession: 6% chance, medium confidence. Offered in 0 of 7 intersession terms since 2017.
2026 Not offered 1 section Not offered No data for this term
2025 Not offered 1 section Not offered Not offered
2024 Not offered 1 section Not offered Not offered
2023 Not offered 1 section Not offered Not offered
2022 Not offered 1 section Not offered Not offered
2021 Not offered 1 section Not offered Not offered
2020 Not offered 1 section Not offered Not offered
2019 Not offered 1 section Not offered No data for this term
2018 Not offered 1 section Not offered No data for this term
2017 Not offered 1 section Not offered Not offered
2016 Not offered 1 section Not offered No data for this term
Forecast Under 15% 15–39% 40–69% 70–89% 90%+ Not enough history
Fall Spring Summer Intersession Darker means more sections Not offered No data for term

Future estimates combine recent offering frequency with detected multi-year cycles. Hover a cell for confidence and evidence; low-confidence estimates are marked with ~.

Meeting times

Most recent first
  • Thu, 1:25 PM–4:10 PM Biological Sciences B120 2026-22025-22024-220232022-22021-2 +6 more Also offered in Spring 2020, Spring 2019, Spring 2018, Spring 2017, Spring 2016, Spring 2014
  • Mon, Wed, Fri, 9:00 AM–9:50 AM Biological Sciences B237 2026-12025-12024-12022-12021-12019-1 +2 more Also offered in Spring 2018, Spring 2017
  • Fri, 1:25 PM–4:10 PM Biological Sciences B120 2026-32025-32024-32021-32019-32018-3 +2 more Also offered in Spring 2017, Spring 2016
  • Wed, 6:00 PM–8:45 PM Biological Sciences B120 2026-42025-42024-52022-42021-42020-4 +2 more Also offered in Spring 2019, Spring 2018
  • Thu, 6:00 PM–8:45 PM Biological Sciences B120 2026-52024-42022-32020-32018-42017-4
  • Mon, Wed, Fri, 10:00 AM–10:50 AM Biological Sciences B237 2020-1
  • Tue, Thu, 10:25 AM–11:40 AM JC120 2016-12014-1
  • Thu, 1:25 PM–4:25 PM Biological Sciences B120 20142013-32012-32011-32010-3
2025–26 1 entry
Credit-bearing sections of BIOL109, 2025–26
TermProfessorTypeCreditsEnrollmentCRN
Spring 2026Nathan A. Ahlgren (He/Him)Lecture1 47 of 44 enrolled30380
2024–25 1 entry
Credit-bearing sections of BIOL109, 2024–25
TermProfessorTypeCreditsEnrollmentCRN
Spring 2025Jamie R. Fitzgerald BoehmLecture1 31 of 33 enrolled30380
2023–24 1 entry
Credit-bearing sections of BIOL109, 2023–24
TermProfessorTypeCreditsEnrollmentCRN
Spring 2024Nathan A. Ahlgren (He/Him)Lecture1 50 of 44 enrolled30380
2022–23 1 entry
Credit-bearing sections of BIOL109, 2022–23
TermProfessorTypeCreditsEnrollmentCRN
Spring 2023Nathan A. Ahlgren (He/Him)Lecture1 30 of 44 enrolled30380
2021–22 1 entry
Credit-bearing sections of BIOL109, 2021–22
TermProfessorTypeCreditsEnrollmentCRN
Spring 2022Nathan A. Ahlgren (He/Him)Lecture1 50 of 44 enrolled30380
2020–21 1 entry
Credit-bearing sections of BIOL109, 2020–21
TermProfessorTypeCreditsEnrollmentCRN
Spring 2021Nathan A. Ahlgren (He/Him)Lecture1 45 of 44 enrolled32403
2019–20 1 entry
Credit-bearing sections of BIOL109, 2019–20
TermProfessorTypeCreditsEnrollmentCRN
Spring 2020Minoli E. PereraLecture1 52 of 52 enrolled32403
2018–19 1 entry
Credit-bearing sections of BIOL109, 2018–19
TermProfessorTypeCreditsEnrollmentCRN
Spring 2019Nathan A. Ahlgren (He/Him)Lecture1 55 of 52 enrolled32403
2017–18 1 entry
Credit-bearing sections of BIOL109, 2017–18
TermProfessorTypeCreditsEnrollmentCRN
Spring 2018Nathan A. Ahlgren (He/Him)Lecture1 60 of 52 enrolled32403
2016–17 1 entry
Credit-bearing sections of BIOL109, 2016–17
TermProfessorTypeCreditsEnrollmentCRN
Spring 2017Nathan A. Ahlgren (He/Him)Lecture1 55 of 48 enrolled32403
2015–16 1 entry
Credit-bearing sections of BIOL109, 2015–16
TermProfessorTypeCreditsEnrollmentCRN
Spring 2016Samantha G. PalaceLecture1 36 of 32 enrolled32403
2014–15 2 entries
Credit-bearing sections of BIOL109, 2014–15
TermProfessorTypeCreditsEnrollmentCRN
Spring 2015Heather WiatrowskiLecture1 24 of 32 enrolled32403
Fall 2014Heather WiatrowskiLecture1 23 of 32 enrolled21006
2013–14 2 entries
Credit-bearing sections of BIOL109, 2013–14
TermProfessorTypeCreditsEnrollmentCRN
Spring 2014Heather WiatrowskiLecture1 16 of 16 enrolled32403
Fall 2013Heather WiatrowskiLecture1 35 of 32 enrolled21006
2012–13 2 entries
Credit-bearing sections of BIOL109, 2012–13
TermProfessorTypeCreditsEnrollmentCRN
Spring 2013Heather WiatrowskiLecture1 15 of 16 enrolled32403
Fall 2012Heather WiatrowskiLecture1 40 of 32 enrolled21006
2011–12 1 entry
Credit-bearing sections of BIOL109, 2011–12
TermProfessorTypeCreditsEnrollmentCRN
Fall 2011Heather WiatrowskiLecture1 37 of 32 enrolled21006
2010–11 1 entry
Credit-bearing sections of BIOL109, 2010–11
TermProfessorTypeCreditsEnrollmentCRN
Fall 2010Heather WiatrowskiLecture1 32 of 32 enrolled28193
2009–10 1 entry
Credit-bearing sections of BIOL109, 2009–10
TermProfessorTypeCreditsEnrollmentCRN
Spring 2010Heather WiatrowskiLecture1 28 of 48 enrolled33532
2008–09 1 entry
Credit-bearing sections of BIOL109, 2008–09
TermProfessorTypeCreditsEnrollmentCRN
Spring 2009Heather WiatrowskiLecture1 30 of 34 enrolled33532
2007–08 1 entry
Credit-bearing sections of BIOL109, 2007–08
TermProfessorTypeCreditsEnrollmentCRN
Spring 2008Jon D. GoguenLecture1 32 of 34 enrolled33532
2006–07 1 entry
Credit-bearing sections of BIOL109, 2006–07
TermProfessorTypeCreditsEnrollmentCRN
Spring 2007Thomas J. LeonardLecture1 31 of 40 enrolled33532
2005–06 1 entry
Credit-bearing sections of BIOL109, 2005–06
TermProfessorTypeCreditsEnrollmentCRN
Spring 2006Thomas J. LeonardLecture1 26 of 40 enrolled33532
2004–05 1 entry
Credit-bearing sections of BIOL109, 2004–05
TermProfessorTypeCreditsEnrollmentCRN
Spring 2005Thomas J. LeonardLecture1 21 of 40 enrolled30015
2003–04 1 entry
Credit-bearing sections of BIOL109, 2003–04
TermProfessorTypeCreditsEnrollmentCRN
Spring 2004Thomas J. LeonardLecture1 32 of 40 enrolled30015
2002–03 1 entry
Credit-bearing sections of BIOL109, 2002–03
TermProfessorTypeCreditsEnrollmentCRN
Spring 2003Thomas J. LeonardLecture1 27 of 40 enrolled30061
2001–02 1 entry
Credit-bearing sections of BIOL109, 2001–02
TermProfessorTypeCreditsEnrollmentCRN
Spring 2002Thomas J. LeonardLecture1 21 of 40 enrolled30061
2000–01 1 entry
Credit-bearing sections of BIOL109, 2000–01
TermProfessorTypeCreditsEnrollmentCRN
Spring 2001Thomas J. LeonardLecture1 19 of 35 enrolled30061
1999–00 1 entry
Credit-bearing sections of BIOL109, 1999–00
TermProfessorTypeCreditsEnrollmentCRN
Spring 2000Thomas J. LeonardLecture1 33 of 99 enrolled30061
1998–99 1 entry
Credit-bearing sections of BIOL109, 1998–99
TermProfessorTypeCreditsEnrollmentCRN
Spring 1999Thomas J. LeonardLecture1 35 of 36 enrolled30061
1997–98 1 entry
Credit-bearing sections of BIOL109, 1997–98
TermProfessorTypeCreditsEnrollmentCRN
Spring 1998Thomas J. LeonardLecture1 47 of 35 enrolled30061
1996–97 1 entry
Credit-bearing sections of BIOL109, 1996–97
TermProfessorTypeCreditsEnrollmentCRN
Spring 1997Thomas J. LeonardLecture1 56 of 20 enrolled30061
1995–96 1 entry
Credit-bearing sections of BIOL109, 1995–96
TermProfessorTypeCreditsEnrollmentCRN
Spring 1996Thomas J. LeonardLecture1 35 of 20 enrolled30061

No-credit sessions

2025–26 4 entries
No-credit sections of BIOL109, 2025–26
TermProfessorTypeCreditsEnrollmentCRN
Spring 2026Nathan A. Ahlgren (He/Him)Lab- 11 of 11 enrolled30381
Spring 2026Nathan A. Ahlgren (He/Him)Lab- 12 of 11 enrolled30490
Spring 2026Nathan A. Ahlgren (He/Him)Lab- 11 of 11 enrolled34627
Spring 2026Nathan A. Ahlgren (He/Him)Lab- 13 of 11 enrolled33135
2024–25 3 entries
No-credit sections of BIOL109, 2024–25
TermProfessorTypeCreditsEnrollmentCRN
Spring 2025Jamie R. Fitzgerald BoehmLab- 10 of 11 enrolled30381
Spring 2025Jamie R. Fitzgerald BoehmLab- 10 of 11 enrolled33135
Spring 2025Jamie R. Fitzgerald BoehmLab- 11 of 11 enrolled30490
2023–24 4 entries
No-credit sections of BIOL109, 2023–24
TermProfessorTypeCreditsEnrollmentCRN
Spring 2024Nathan A. Ahlgren (He/Him)Lab- 12 of 11 enrolled30381
Spring 2024Nathan A. Ahlgren (He/Him)Lab- 12 of 11 enrolled30490
Spring 2024Nathan A. Ahlgren (He/Him)Lab- 13 of 11 enrolled30652
Spring 2024Nathan A. Ahlgren (He/Him)Lab- 13 of 11 enrolled33135
2022–23 3 entries
No-credit sections of BIOL109, 2022–23
TermProfessorTypeCreditsEnrollmentCRN
Spring 2023Nathan A. Ahlgren (He/Him)Lab- 10 of 11 enrolled30490
Spring 2023Nathan A. Ahlgren (He/Him)Lab- 7 of 11 enrolled30652
Spring 2023Nathan A. Ahlgren (He/Him)Lab- 13 of 11 enrolled30381
2021–22 4 entries
No-credit sections of BIOL109, 2021–22
TermProfessorTypeCreditsEnrollmentCRN
Spring 2022Nathan A. Ahlgren (He/Him)Lab- 10 of 11 enrolled30490
Spring 2022Nathan A. Ahlgren (He/Him)Lab- 14 of 11 enrolled30381
Spring 2022Nathan A. Ahlgren (He/Him)Lab- 11 of 11 enrolled30652
Spring 2022Nathan A. Ahlgren (He/Him)Lab- 14 of 11 enrolled30755
2020–21 4 entries
No-credit sections of BIOL109, 2020–21
TermProfessorTypeCreditsEnrollmentCRN
Spring 2021Nathan A. Ahlgren (He/Him)Lab- 10 of 11 enrolled35794
Spring 2021Nathan A. Ahlgren (He/Him)Lab- 12 of 11 enrolled32404
Spring 2021Nathan A. Ahlgren (He/Him)Lab- 11 of 11 enrolled34153
Spring 2021Nathan A. Ahlgren (He/Him)Lab- 12 of 11 enrolled36637
2019–20 4 entries
No-credit sections of BIOL109, 2019–20
TermProfessorTypeCreditsEnrollmentCRN
Spring 2020Minoli E. PereraLab- 13 of 13 enrolled32404
Spring 2020Minoli E. PereraLab- 14 of 13 enrolled35794
Spring 2020Minoli E. PereraLab- 13 of 13 enrolled36637
Spring 2020Minoli E. PereraLab- 12 of 13 enrolled34153
2018–19 4 entries
No-credit sections of BIOL109, 2018–19
TermProfessorTypeCreditsEnrollmentCRN
Spring 2019Nathan A. Ahlgren (He/Him)Lab- 14 of 14 enrolled32404
Spring 2019Nathan A. Ahlgren (He/Him)Lab- 14 of 14 enrolled34153
Spring 2019Nathan A. Ahlgren (He/Him)Lab- 15 of 14 enrolled36637
Spring 2019Nathan A. Ahlgren (He/Him)Lab- 12 of 14 enrolled35794
2017–18 4 entries
No-credit sections of BIOL109, 2017–18
TermProfessorTypeCreditsEnrollmentCRN
Spring 2018Nathan A. Ahlgren (He/Him)Lab- 16 of 14 enrolled32404
Spring 2018Nathan A. Ahlgren (He/Him)Lab- 14 of 14 enrolled34153
Spring 2018Nathan A. Ahlgren (He/Him)Lab- 15 of 14 enrolled35794
Spring 2018Nathan A. Ahlgren (He/Him)Lab- 15 of 14 enrolled36637
2016–17 3 entries
No-credit sections of BIOL109, 2016–17
TermProfessorTypeCreditsEnrollmentCRN
Spring 2017Nathan A. Ahlgren (He/Him)Lab- 19 of 16 enrolled35794
Spring 2017Nathan A. Ahlgren (He/Him)Lab- 18 of 16 enrolled32404
Spring 2017Nathan A. Ahlgren (He/Him)Lab- 18 of 16 enrolled34153
2015–16 2 entries
No-credit sections of BIOL109, 2015–16
TermProfessorTypeCreditsEnrollmentCRN
Spring 2016Samantha G. PalaceLab- 17 of 16 enrolled32404
Spring 2016Samantha G. PalaceLab- 19 of 16 enrolled34153
2014–15 4 entries
No-credit sections of BIOL109, 2014–15
TermProfessorTypeCreditsEnrollmentCRN
Spring 2015Heather WiatrowskiLab- 14 of 16 enrolled32404
Spring 2015Heather WiatrowskiLab- 10 of 16 enrolled34153
Fall 2014Heather WiatrowskiLab- 16 of 16 enrolled21008
Fall 2014Heather WiatrowskiLab- 7 of 16 enrolled21007
2013–14 3 entries
No-credit sections of BIOL109, 2013–14
TermProfessorTypeCreditsEnrollmentCRN
Spring 2014Heather WiatrowskiLab- 16 of 16 enrolled32404
Fall 2013Heather WiatrowskiLab- 16 of 16 enrolled21007
Fall 2013Heather WiatrowskiLab- 19 of 16 enrolled21008
2012–13 3 entries
No-credit sections of BIOL109, 2012–13
TermProfessorTypeCreditsEnrollmentCRN
Spring 2013Heather WiatrowskiLab- 15 of 16 enrolled32404
Fall 2012Heather WiatrowskiLab- 20 of 16 enrolled21007
Fall 2012Heather WiatrowskiLab- 20 of 16 enrolled21008
2011–12 2 entries
No-credit sections of BIOL109, 2011–12
TermProfessorTypeCreditsEnrollmentCRN
Fall 2011Heather WiatrowskiLab- 19 of 16 enrolled21007
Fall 2011Heather WiatrowskiLab- 18 of 16 enrolled21008
2010–11 2 entries
No-credit sections of BIOL109, 2010–11
TermProfessorTypeCreditsEnrollmentCRN
Fall 2010Heather WiatrowskiLab- 14 of 16 enrolled28194
Fall 2010Heather WiatrowskiLab- 18 of 16 enrolled28195
2009–10 3 entries
No-credit sections of BIOL109, 2009–10
TermProfessorTypeCreditsEnrollmentCRN
Spring 2010Heather WiatrowskiLab- 15 of 17 enrolled33534
Spring 2010Heather WiatrowskiLab- 10 of 17 enrolled33543
Spring 2010Heather WiatrowskiLab- 3 of 16 enrolled38055
2008–09 2 entries
No-credit sections of BIOL109, 2008–09
TermProfessorTypeCreditsEnrollmentCRN
Spring 2009Heather WiatrowskiLab- 17 of 17 enrolled33543
Spring 2009Heather WiatrowskiLab- 13 of 17 enrolled33534
2007–08 2 entries
No-credit sections of BIOL109, 2007–08
TermProfessorTypeCreditsEnrollmentCRN
Spring 2008Jon D. GoguenLab- 16 of 17 enrolled33534
Spring 2008Jon D. GoguenLab- 15 of 17 enrolled33543
2006–07 2 entries
No-credit sections of BIOL109, 2006–07
TermProfessorTypeCreditsEnrollmentCRN
Spring 2007Thomas J. LeonardLab- 21 of 20 enrolled33534
Spring 2007Thomas J. LeonardLab- 10 of 20 enrolled33543
2005–06 2 entries
No-credit sections of BIOL109, 2005–06
TermProfessorTypeCreditsEnrollmentCRN
Spring 2006Thomas J. LeonardLab- 19 of 20 enrolled33534
Spring 2006Thomas J. LeonardLab- 7 of 20 enrolled33543
2004–05 2 entries
No-credit sections of BIOL109, 2004–05
TermProfessorTypeCreditsEnrollmentCRN
Spring 2005Thomas J. LeonardLab- 15 of 20 enrolled30022
Spring 2005Thomas J. LeonardLab- 6 of 20 enrolled30023
2003–04 2 entries
No-credit sections of BIOL109, 2003–04
TermProfessorTypeCreditsEnrollmentCRN
Spring 2004Thomas J. LeonardLab- 21 of 20 enrolled30022
Spring 2004Thomas J. LeonardLab- 11 of 20 enrolled30023
2002–03 2 entries
No-credit sections of BIOL109, 2002–03
TermProfessorTypeCreditsEnrollmentCRN
Spring 2003UnlistedLab- 15 of 20 enrolled30070
Spring 2003Thomas J. LeonardLab- 12 of 20 enrolled30071
2001–02 2 entries
No-credit sections of BIOL109, 2001–02
TermProfessorTypeCreditsEnrollmentCRN
Spring 2002Thomas J. LeonardLab- 11 of 20 enrolled30070
Spring 2002Thomas J. LeonardLab- 10 of 20 enrolled30071
2000–01 2 entries
No-credit sections of BIOL109, 2000–01
TermProfessorTypeCreditsEnrollmentCRN
Spring 2001UnlistedLab- 9 of 50 enrolled30070
Spring 2001UnlistedLab- 10 of 50 enrolled30071
1999–00 2 entries
No-credit sections of BIOL109, 1999–00
TermProfessorTypeCreditsEnrollmentCRN
Spring 2000UnlistedLab- 10 of 50 enrolled30070
Spring 2000UnlistedLab- 23 of 50 enrolled30071
1998–99 2 entries
No-credit sections of BIOL109, 1998–99
TermProfessorTypeCreditsEnrollmentCRN
Spring 1999UnlistedLab- 15 of 18 enrolled30070
Spring 1999UnlistedLab- 19 of 18 enrolled30071
1997–98 2 entries
No-credit sections of BIOL109, 1997–98
TermProfessorTypeCreditsEnrollmentCRN
Spring 1998UnlistedLab- 19 of 10 enrolled30070
Spring 1998UnlistedLab- 23 of 10 enrolled30071
1996–97 2 entries
No-credit sections of BIOL109, 1996–97
TermProfessorTypeCreditsEnrollmentCRN
Spring 1997UnlistedLab- 17 of 10 enrolled30070
Spring 1997UnlistedLab- 20 of 10 enrolled30071
1995–96 2 entries
No-credit sections of BIOL109, 1995–96
TermProfessorTypeCreditsEnrollmentCRN
Spring 1996UnlistedLab- 7 of 10 enrolled30070
Spring 1996UnlistedLab- 11 of 10 enrolled30071