The comic · Genetics of Disease (GenD)

Week 6 of 22

SEPTEMBER 21 TO 24

Fiction. No real student, family or grade appears.

Drawing, panel 25: Bioethics debate: false results.

False results. A false negative sends someone home contagious. A false positive treats someone who is well. You cannot eliminate both.

Panel 25Bioethics debate: false results · 2026-09-21
Drawing, panel 26: Controls and wet-lab plan.

Positive control, negative control, blank. If the negative control comes up positive, every result on that plate is meaningless.

Panel 26Controls and wet-lab plan
Drawing, panel 27: Wet ELISA lab.

Actual plate, actual pipettes, actual colour change. My hands were not steady and my volumes were not consistent for the first row, which you can see in the data.

MR. MENDOZA

Good. You caught it. The dangerous version is the group that never ran a control.

Panel 27Wet ELISA lab · 2026-09-22
Drawing, panel 28: Specificity vs sensitivity.

Sensitivity is the share of people who have it that the test catches. Specificity is the share of people who do not have it that the test correctly clears.

Panel 28Specificity vs sensitivity · 2026-09-23
Drawing, panel 29: ELISA lab report submission.

Plate layout, raw absorbance, standard curve, unknowns, and a limitations paragraph about my unsteady first row.

Panel 29ELISA lab report submission · 2026-09-24
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