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Genes and DNA, Explained
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What DNA and genes are, how conditions are inherited, what heritability really means, what home DNA tests can and can't tell you, how CRISPR and the first gene therapies work (and how to read gene headlines) from MedlinePlus, the FDA and the research. General education, not medical advice.
2h 56m5 constellations
01Explain DNA, genes and how conditions are inherited
02Read heritability and genetic risk as what they are, not destiny
03Use home DNA and ancestry tests wisely, privacy included
04Judge CRISPR, gene-therapy and “gene for” headlines on the evidence
Every lesson of Genes and DNA, Explained
15 lessons in 5 levels, about 3 hours. Level 1 is free.
Level 1The Code of LifeFree · 3 lessons
- DNA, genes and your genomeKnow what DNA, genes and a genome are, and how similar people really are.11 min
- How conditions are inheritedWork out the chances for dominant and recessive conditions, and why they apply every time.12 min
- Checkpoint: new in every generationKnow where new mutations come from, and how parents' ages affect them.12 min
Level 2Nature and NurtureMembership · 3 lessons
- What heritability really meansRead heritability correctly: a statement about populations, not your destiny.11 min
- Many genes, small effectsSee why most traits involve thousands of variants, and why predictions travel poorly.12 min
- Checkpoint: genes are not destinyRead even strong genetic risks as probabilities, and see how environment can change outcomes.12 min
Level 3Home DNA TestsMembership · 3 lessons
- What home DNA tests can tell youKnow the limits of home DNA tests, and why health results need clinical confirmation.11 min
- Ancestry estimates, explainedRead ancestry results as estimates, and know what each kind of test traces.12 min
- Checkpoint: your DNA isn't only yoursSee how relatives' tests can identify you, and decide as a family before testing.12 min
Level 4Genes and MedicineMembership · 3 lessons
- CRISPR, simplyUnderstand what CRISPR does, and three questions to ask about any gene-editing headline.11 min
- Gene therapy arrivesKnow what the first CRISPR therapy does, and read its trial numbers accurately.12 min
- Checkpoint: miracle clinicsSpot unapproved stem-cell and “regenerative” treatments before they cost money or health.12 min
Level 5Read the HeadlinesMembership · 3 lessons
- “Scientists find the gene for…”See why single-gene headlines about complex traits often don't replicate.11 min
- Epigenetics without the hypeKnow what the Dutch Hunger Winter study showed, and what it didn't.12 min
- Capstone: your genetics toolkitPut the code, inheritance, tests, therapies and headlines into one toolkit.13 min
AFTER THE CORE