Gene Knowledge Graph
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Continuously updated · latest Sep 30, 2026

Lessons that are free to use in any classroom, new research, changes to the dataset, plain-language explainers, and the real genetics behind things you already know. Every entry says which subject it belongs to and what you need to know before reading it. Medical information goes stale, so entries are revised when the evidence moves — revised entries show their update date, not just the day they were first published. Every article here is CC BY-NC 4.0 licensed — free to share and adapt with credit, not for commercial use (details).

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All 32 New research 4 Explainers 9 For classrooms 9 Pop science 10
Subject Genetics 22 Biology 21 Health 8 Statistics 6 Mathematics 3 Social studies 3 Chemistry 2 Computer science 1 Ethics 1 Physics 1
A height chart on a wall, with two of its marks leading off to a knee and to the abdominal wall

Your Height Genes Have Second Jobs: Meet GDF5 and EFEMP1

BiologyGenetics Introductory

The stretches of DNA that set your height do other work too. In the records of three large studies, the taller version of one gene goes with healthier knees, and the taller version of another goes with more groin hernias. Same trait, opposite directions.

Sep 30, 2026 1 8

A night of sleep drawn as a band of stages, with the REM portions highlighted

Your Sleep Tracker's REM Minutes Are Partly Inherited: Meet MEIS1

BiologyGenetics Introductory

You and your friend slept the same eight hours and your trackers disagree about what happened in them. A 2026 study put a device on 80,013 people and found 20 places in the genome that shape a night of sleep — including one gene that adds REM and takes away non-REM at the same time.

Sep 29, 2026 1 6

A clock face whose hours are marked by a rising and falling line of blood sugar

Your Blood Sugar Keeps Time: The Clock Genes Behind the Midnight Snack

BiologyGenetics Introductory

The same snack at noon and at midnight is not the same snack to your body. A 2026 study of nearly half a million blood samples, each stamped with the hour it was drawn, found that blood sugar is under genetic control that changes through the day — and the two strongest signals sit in the melatonin receptor and a clock gene.

Sep 29, 2026 2 9

A crowd of identical figures, nearly all of them carrying the same small shadow

The Virus Most of Us Carry for Life: Epstein-Barr, Mono, and What Your Genes Decide

BiologyGenetics Introductory

Mono — "the kissing disease" — is Epstein-Barr virus, and it never leaves. About 90-95% of people carry it. A 2026 study read the virus straight out of genome data from 822,000 people and asked which genes keep it quiet; four of its positions are on this site. And a 2022 study of ten million soldiers is why anyone cares.

Sep 29, 2026 2 10

Two identical cups of coffee, one calm and one trembling

Why One Cup of Coffee Wrecks You and Not Your Friend: Meet CYP1A2

BiologyGenetics Introductory

One friend sleeps fine after a late americano; another shakes after a single cup. There is a real gene behind that difference — and the famous claim about it and heart attacks is not what the wellness videos say.

Sep 28, 2026 1 13

A personality quiz result screen dissolving into strands of DNA

Is Your MBTI Actually in Your DNA? Meet the Big Five.

BiologyGenetics Introductory

Everyone knows their MBTI letters. Almost nobody has heard of the actual framework a massive 2026 genetics study just tied to over 1,200 DNA variants — and it isn’t MBTI.

Sep 28, 2026 2 14

A strand of hair splitting apart to reveal a DNA double helix inside it

One Gene, Three Hair Types: Meet EDAR

BiologyGenetics Introductory

A single DNA change near one gene, EDAR, tracks with three distinct hair-thickness profiles in published research — and in populations where the thicker-hair version is common, the same change also shows up in sweat-gland density and tooth shape. One variant, several traits.

Sep 24, 2026 6 34

A muscle fiber splitting into two paths, one built for a short powerful burst, one built for sustained endurance

Is There Really a "Sprinter Gene"? Yes — Meet ACTN3.

BiologyGenetics Introductory

Every gym-culture video insists some people are just "built" for lifting heavy and others for endurance. There actually is a real, named gene behind that claim — it just doesn’t work the way the videos make it sound.

Sep 23, 2026 6 30

A DNA double helix with a section physically missing, like a puzzle piece removed

The Real Genetics Behind Zombie-Movie “Immunity”

BiologyGenetics Introductory

Every outbreak movie has that one person who was never going to get infected. That part's fiction — but a real 32-letter deletion in a real human gene gets closer to it than almost anything else in genetics, for one very specific virus.

Sep 23, 2026 8 34

A human silhouette made of unchanging DNA next to the same silhouette made of fast-food packaging, visibly bigger

Does Junk Food Make You Thicc? We Checked the Genetics.

GeneticsHealth Introductory

Someone asked an AI chatbot if eating processed food makes specific body parts bigger. The honest answer is more interesting than yes or no — it's a story about which part of your body actually listens to your genes, and which part has been listening to something else entirely for the last 45 years.

Sep 23, 2026 40 35