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CHEM 153B · Lec 1

Biochemistry: DNA, RNA, and Protein Synthesis

Fall 2026Lawson, M.4 units

Seats, time, final and grades

Seats

Open, 7 seats left.

133 of 140 enrolled, lecture and all discussions summed.

Meets

MWF 10:00am-10:50am

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

Final

Tue 8 Dec, 8:00am to 11:00am

One exam for the whole class, Los Angeles time.

Read 23 hours ago.

Grades

3.31
predicted, this instructor · 420 grades

420 letter grades, Lawson, M..

Read 2 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

dibs has seen this section open 5 times since 17 August. The last time was 22 September.

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Before you can enroll

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

From the registrar limited until second pass

Any student attempting to save or sell a spot for another student is violating Student Conduct Code 102.23d and may be referred to the Office of the Dean of Students. Enrollment is limited to departmental majors on the priority and first enrollment passes. Any student may enroll on the second pass, space permitting.

This limit ends at an enrollment pass rather than on a date, and dibs does not hold the date second pass opens for Fall 2026, so it cannot say whether that pass has come. When it does, the registrar writes who may enroll then as “Any student may enroll on the second pass, space permitting.” So dibs cannot tell whether this class is open to you today, and it is not counting it as one you can take: your enrollment appointment on MyUCLA is what settles it.

Restrictions read 23 hours ago.

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, 2 open: Dis 1A, T 9:00am-9:50am, and Dis 1B, T 12:00pm-12:50pm.

  • Dis 1A

    T 9:00am-9:50am

    George, C.

    Open, 3 seats left.

  • Dis 1B

    T 12:00pm-12:50pm

    Reyes Fernandez, J

    Open, 4 seats left.

  • Dis 1C

    W 9:00am-9:50am

    McFarland, A.

    Waitlist, 0 of 2 places taken.

  • Dis 1D

    W 1:00pm-1:50pm

    Reyes Fernandez, J

    Waitlist, 0 of 2 places taken.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: MWF 10:00am-10:50am

Discussions: T 9:00am-9:50am · T 12:00pm-12:50pm

Young Hall CS24

Grades

3.31
predicted, this instructor · 420 grades

Of the 8 other people in the grade record for CHEM 153B, the 2 with the most grades: COUREY, ALBERT J at 3.42 over 276 grades and LANNAN, RYAN at 3.27 over 262 grades.

A range
50%
P/NP
<1%
D/F/W
3.6%

Full grade history for CHEM 153B

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. 4.9 of 5 for Michael Lawson, where 5 is lightest. Read 30 days ago.

dibs has read this course’s reviews and none of them say what kind of work it sets, so dibs has nothing to show rather than a guess. Read from 144 reviews 26 days ago. That is the reviewers being silent, and not a course that sets no work.

CHEM 153B reviews for Michael Lawson Reviews for all professors of CHEM 153B

Will it still be here

high risk chance of closing before your enrollment pass.

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

  • 8321F
  • 7822W
  • 9722S
  • 7722F
  • 12123W
  • 10823S
  • 9723F
  • 12524W
  • 17224S
  • 15624F
  • 17225W
  • 8225S
  • 12525F
Enrollment by term: 21F 83, 22W 78, 22S 97, 22F 77, 23W 121, 23S 108, 23F 97, 24W 125, 24S 172, 24F 156, 25W 172, 25S 82, 25F 125

Peak 172 · most recent 25F at 125

Seats over time

Nothing read since 1 Oct, 2 hours ago. Over about 2 months before that, freed 7 seats.

5 times reopened
133 of 140 · 7 left in its discussions
17 Aug 15:079 Sep 05:041 Oct 19:02 · 2 hours ago
dibs read 168 of the 512 hours its hourly record covers, 33%, and did not look in 344. dibs had no hourly record before 10 Sep, which is the other 573 of 1085 plotted.133 of 140 enrolled at the newest reading, 2 hours ago, with 7 left in its discussions. Seats from 17 Aug 15:07 to 1 Oct 19:02, 140 to 133. dibs read 168 of the 512 hours its hourly record here covers, 33%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 344 hours dibs was keeping a record and did not reach this section. Nothing before 10 September at 12:00, where this section's record starts, has a read either way, which is 573 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

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 2 hours ago. It is where the line stops, not where the count is now.

Show the readings (63)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 19:02 133 140 open 0 of 8 1 of 1
1 Oct 19:02 133 140 open 0 of 8 7 of 20
1 Oct 00:22 134 140 open 0 of 8 2 of 5
30 Sep 20:52 135 140 open 0 of 8 3 of 7
30 Sep 14:42 136 140 open 0 of 8 2 of 4
30 Sep 11:12 135 140 open 0 of 8 4 of 12
30 Sep 00:02 136 140 open 0 of 8 2 of 5
29 Sep 20:32 136 140 open 1 of 8 10 of 30
28 Sep 15:02 136 140 open 0 of 8 18 of 60
26 Sep 04:52 137 140 open 0 of 8 4 of 11
25 Sep 18:12 136 140 open 0 of 8 2 of 5
25 Sep 14:42 137 140 open 0 of 8 2 of 4
25 Sep 11:32 136 140 open 0 of 8 4 of 11
25 Sep 01:12 137 140 open 0 of 8 4 of 12
24 Sep 14:42 138 140 open 0 of 8 4 of 11
24 Sep 04:12 138 140 open 1 of 8 2 of 6
23 Sep 23:42 139 140 open 1 of 8 2 of 4
23 Sep 20:32 139 140 open 3 of 8 2 of 5
23 Sep 16:42 139 140 open 1 of 8 8 of 24
22 Sep 17:52 139 140 open 3 of 8 13 of 41
21 Sep 01:02 140 140 waitlist 3 of 8 2 of 5
20 Sep 21:42 139 140 open 3 of 8 2 of 3
20 Sep 19:22 140 140 waitlist 3 of 8 6 of 16
20 Sep 04:12 139 140 open 3 of 8 3 of 8
19 Sep 21:22 140 140 waitlist 3 of 8 2 of 4
19 Sep 18:02 139 140 open 3 of 8 14 of 41
18 Sep 02:42 140 140 waitlist 3 of 8 6 of 15
17 Sep 12:22 139 140 open 4 of 8 15 of 43
15 Sep 18:32 138 140 open 4 of 8 2 of 4
15 Sep 15:02 137 140 open 4 of 8 2 of 5
15 Sep 11:32 138 140 open 4 of 8 4 of 12
15 Sep 00:02 140 140 waitlist 6 of 8 2 of 5
14 Sep 20:52 140 140 waitlist 7 of 8 6 of 17
14 Sep 04:12 140 140 waitlist 6 of 8 3 of 8
13 Sep 21:32 140 140 waitlist 5 of 8 2 of 3
13 Sep 19:02 140 140 waitlist 6 of 8 15 of 45
11 Sep 23:02 140 140 waitlist 5 of 8 2 of 3
11 Sep 21:32 140 140 waitlist 6 of 8 3 of 3
11 Sep 19:26 140 140 waitlist 5 of 8 2 of 4
11 Sep 16:40 140 140 waitlist 6 of 8 3 of 4
11 Sep 13:40 140 140 waitlist 5 of 8 3 of 4
11 Sep 10:40 140 140 waitlist 6 of 8 2 of 2
11 Sep 09:40 140 140 waitlist 5 of 8 5 of 8
11 Sep 02:40 140 140 waitlist 6 of 8 9 of 50, 35 no hourly record
9 Sep 01:40 140 140 waitlist 7 of 8 no hourly record
9 Sep 00:40 140 140 closed 8 of 8 no hourly record
8 Sep 22:40 140 140 waitlist 7 of 8 no hourly record
4 Sep 01:40 140 140 closed 8 of 8 no hourly record
2 Sep 23:40 140 140 waitlist 7 of 8 no hourly record
2 Sep 17:40 140 140 closed 8 of 8 no hourly record
2 Sep 16:40 140 140 waitlist 7 of 8 no hourly record
2 Sep 13:40 140 140 closed 8 of 8 no hourly record
2 Sep 11:40 140 140 waitlist 7 of 8 no hourly record
1 Sep 01:40 140 140 closed 8 of 8 no hourly record
31 Aug 01:40 140 140 waitlist 7 of 8 no hourly record
30 Aug 22:40 140 140 waitlist 6 of 8 no hourly record
30 Aug 21:40 140 140 waitlist 7 of 8 no hourly record
26 Aug 18:40 140 140 waitlist 6 of 8 no hourly record
26 Aug 15:40 140 140 closed 8 of 8 no hourly record
26 Aug 14:40 140 140 waitlist 6 of 8 no hourly record
26 Aug 12:40 140 140 closed 8 of 8 no hourly record
26 Aug 11:40 140 140 waitlist 6 of 8 no hourly record
17 Aug 15:07 140 140 closed 8 of 8 -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

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.

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