MCD BIO 104AL Lec 1

Seats

Closed by the department.

45 enrolled enrolled. The department published this count and no capacity, so there is no share to fill.

Read 5 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

Meets

MW 11:00am-11:50am

Lecture only. You also attend a discussion, listed below.

Final

Exam time unavailable

No exam time is listed in the available section details. Check the registrar or current syllabus; this does not mean there is no final.

Grades

3.64

Predicted GPA

Historical records for LEE, PEIYUN; 559 letter grades

dibs has seen this section open 4 times since 18 August. The last time was 29 September.

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A watch slot

25 per account. A lecture watch also covers its discussions. Paused watches still use a slot.

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Before you can enroll

Registrar's Restrictions cell, read 7 days ago: "Molecular, Cell, and Developmental Biology Majors".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar

Due to the Veterans Day holiday on Wednesday, November 11, 2026, laboratory 1C will meet from 1 to 4:50 p.m. on Friday, November 13, 2026. Due to the Thanksgiving holiday on Thursday, November 26, 2026, laboratory 1D will meet from 1 to 4:50 p.m. on Friday, November 20, 2026. Nonattendance in the first week results in cancellation of enrollment.

Restrictions checked 7 days ago and may be outdated. Unwatched sections are rechecked less often than watched sections. Check the registrar before counting on a seat.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

4 discussions, none open. No waitlist listed.

No discussion is open. Whatever the lecture reads, there is currently nothing here to enroll in.

Lab 1A
M 1:00pm-4:50pm

Peng, J.

Closed by the department.
Lab 1B
T 1:00pm-4:50pm

Rainey, G.

Closed by the department.
Lab 1C
W 1:00pm-4:50pm

Depaola, P.

Closed by the department.
Lab 1D
R 1:00pm-4:50pm

Qian, Q.

Closed by the department.

Discussion sections, with the seats read in the same sweep as the lecture
Section	Meets	Instructor	Seats
Lab 1A	M 1:00pm-4:50pm	Peng, J.	Closed by the department.
Lab 1B	T 1:00pm-4:50pm	Rainey, G.	Closed by the department.
Lab 1C	W 1:00pm-4:50pm	Depaola, P.	Closed by the department.
Lab 1D	R 1:00pm-4:50pm	Qian, Q.	Closed by the department.

When it meets

Discussion alternatives are shown with the lecture; choose one linked discussion.

Mon

Tue

Wed

Thu

Fri

11am

12pm

1pm

2pm

3pm

4pm

11am-11:50am

1pm-4:50pm

1pm-4:50pm

11am-11:50am

1pm-4:50pm

1pm-4:50pm

Scroll sideways for the whole week. All meeting times are listed below.

Lec 1
MW 11:00am-11:50am
Lab 1A (alternative; recorded closed by department)
M 1:00pm-4:50pm
Lab 1B (alternative; recorded closed by department)
T 1:00pm-4:50pm
Lab 1C (alternative; recorded closed by department)
W 1:00pm-4:50pm
Lab 1D (alternative; recorded closed by department)
R 1:00pm-4:50pm

Mathematical Sciences 6229

Grades

3.64

Predicted GPA

Historical records for LEE, PEIYUN; 559 letter grades

A range: 77%
P/NP: -; letter grade only
D/F/W: 1.8%

Full grade history for MCD BIO 104AL

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

Workload, very light. 5.0 of 5 for Pei Lee, where 5 is lightest. Read 14 days ago.

What the work looks like

Quizzes mentioned, no number given, 3 mentions in past reviews
Papers mentioned, no number given, 1 mention in past reviews
Presentations mentioned, no number given, 3 mentions in past reviews

Based on 14 reviews; source checked about 1 month ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

MCD BIO 104AL reviews for Pei Lee Reviews for all professors of MCD BIO 104AL

Will it still be here

no history chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

4521F
4222W
3222S
4322F
5023W
4123S
4323F
4724W
4224S
4424F
4825W
4325S
3925F

Peak 50 · most recent 25F at 39

Seats over time

Nothing read since 16 Oct, 5 hours ago. Over about 2 months before that, freed 3 seats.

4 times reopened

45 of 48 · no seats left in its discussions

18 Aug 20:4017 Sep 06:4116 Oct 16:43 · 5 hours ago

Checked 168 of the 597 hours with hourly history, 28%. No reading was recorded in 429 hours. dibs had no hourly record before 21 Sep, which is the other 816 of 1413 plotted.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not, and that was 5 hours ago. It is where the line stops, not where the count is now.

Show the readings (14)

Recorded	Enrolled	Capacity	Status	Waitlist	Hours read
16 Oct 16:43	45	0	closed by the department	-	58 of 206
8 Oct 03:02	45	0	closed by the department	-	30 of 123
3 Oct 01:02	46	0	closed by the department	-	12 of 34
1 Oct 16:12	47	0	closed by the department	-	14 of 42
29 Sep 23:42	47	48	open	-	2 of 4
29 Sep 20:12	48	48	closed	-	2 of 5
29 Sep 16:42	47	48	open	-	3 of 8
29 Sep 09:42	46	48	open	-	5 of 14
28 Sep 20:02	47	48	open	-	50 of 311, 142 no hourly record
15 Sep 22:02	48	48	closed	-	no hourly record
15 Sep 12:42	47	48	open	-	no hourly record
21 Aug 00:40	48	48	closed	-	no hourly record
19 Aug 21:40	47	48	open	-	no hourly record
18 Aug 20:40	48	48	closed	-	-

How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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Seats, time, final and grades

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Before you can enroll

From the registrar

Discussions

When it meets

Grades i An estimate based on historical registrar grades, not a student rating. Instructor estimates are pulled toward the course and department average in proportion to how little data there is, so a twelve-person seminar cannot top the list on noise. The sample size is printed beside it.

What students say

Will it still be here i The worse of two readings: how full this section is right now, and how quickly the course has historically filled. A tier rather than a percentage, because reserved seats make any number optimistic: an open seat may be held for a major or an intake you are not in.

Seats over time

Class chat

Grades

Will it still be here