LIFESCI 7B
Genetics, Evolution, and Ecology
Grades
3.59
Average grade awarded in LIFESCI 7B. Not a student rating: this is what the grades were.
In the A range
68%
of the 9,839 letter grades
D, F or W
0.8%
of every letter grade awarded, plus withdrawals
Taken pass/no pass
-
the registrar has this letter grade only this term
The registrar's own records: 9,839 grades over 17 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.
What is inside that record
4 of those terms are summer sessions, and summer sessions are counted here.
The table below splits them, and term averages across those 17 terms ran 3.37 to 3.80.
Historical grades for all professors, across recorded terms. The course summary above includes all professors.
- A+ 166 · 1.7%
- A 4,856 · 49.4%
- A- 1,638 · 16.6%
- B+ 1,181 · 12.0%
- B 975 · 9.9%
- B- 432 · 4.4%
- C+ 274 · 2.8%
- C 236 · 2.4%
- C- 7 · 0.1%
- D+ 16 · 0.2%
- D 34 · 0.3%
- D- 3 · 0.0%
- F 21 · 0.2%
- P 4 of 9,865
- NP 3 of 9,865
- I 17 of 9,865
- DR 2 of 9,865
Percentages are of the 9,839 letter grades. Grey bars are non-letter outcomes: passes (P), no-passes (NP), incompletes (I), and withdrawals (DR).
How the non-letter outcomes are counted
They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
Withdrawals are the exception to "excluded": DR is not scored, but it IS counted in the D, F or W figure above, which is reported over the letter grades plus the withdrawals. Pass/no pass and S/U outcomes are outside that figure on both sides.
By instructor
| Instructor | Predicted GPA | Raw | n | Terms | A range | Workload | Summer Session A 2026 |
|---|---|---|---|---|---|---|---|
| PIRES, DEBRA B reviews ↗ | 3.54 | 3.54 | 4,233 | 12 | 64% | average | not teaching it |
| KANE, TONYA LYNN reviews ↗ | 3.63 | 3.63 | 1,598 | 9 | 70% | average | not teaching it |
| MARCOT, JONATHAN DAVID reviews ↗ | 3.57 | 3.57 | 1,540 | 5 | 67% | light | not teaching it |
| PHAM, HUNG DINH reviews ↗ | 3.72 | 3.72 | 1,321 | 3 | 77% | light | not teaching it |
| BURTON, ANDREA reviews ↗ | 3.50 | 3.50 | 699 | 3 | 60% | very light | not teaching it |
| PHELAN, JOHN PATRICK reviews ↗ | 3.67 | 3.67 | 564 | 2 | 76% | average | not teaching it |
| LYNCH, JESSICA W reviews ↗ | 3.49 | 3.49 | 382 | 1 | 56% | - | not teaching it |
| AGUILLON, STEPFANIE reviews ↗ | 3.54 | 3.54 | 381 | 1 | 62% | - | not teaching it |
| ANDRES-BRAY, TYLER reviews ↗ | 3.49 | 3.48 | 263 | 1 | 58% | - | not teaching it |
| JOHNSON, JANA JOAN reviews ↗ | 3.43 | 3.36 | 38 | 1 | 58% | - | not teaching it |
Why Predicted is not the Raw average
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.
Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.
Workload and assignments
Reported assignments across instructors and terms. This term's syllabus may differ.
What the work looks like
- 2 exams, 8 mentions in past reviews
- 1 quiz, 3 mentions in past reviews
- Problem sets mentioned, no number given, 4 mentions in past reviews
- No labs, 2 mentions in past reviews
Based on 146 reviews; source checked 7 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.
What comes first
The chain dibs can see is 1 course long before LIFESCI 7B. Read from Fall 2026, because dibs has not read a class page for LIFESCI 7B in Summer Session A 2026 and a department can change what it requires. dibs has read a class page for every course in it.
Counted in courses rather than quarters: dibs does not know which of them a department lets you take together.
From the registrar's catalog
Lecture, three hours; laboratory, 80 minutes. Enforced requisite: course 7A. Principles of Mendelian inheritance and population genetics. Introduction to principles and mechanisms of evolution by natural selection, population, behavioral, and community ecology, and biodiversity, including major taxa and their evolutionary, ecological, and physiological relationships. Letter grading.
Sections in Summer Session A 2026
From the people who took it
Student reviews
What taking LIFESCI 7B was like: the work, the teaching, and what students wish they’d known.
Your experience could be the first.
No student reviews are available to read on dibs for this course yet. Took it? Tell the next person what helped, what was hard, and how you spent your time.
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External reviews are separate and do not count toward the dibs rating.