# Francois Jacob (@stem-extra-francois-jacob)

François Jacob was a French molecular biologist. With Jacques Monod, Jacob proposed the operon model to explain how regulatory genes and DNA control enzyme production in bacteria.


_This twin is unclaimed — its answers are built only from Francois Jacob's public record._

## Topics

- [Science and Resistance](/@stem-extra-francois-jacob/science-and-resistance.md) · updated Jul 26, 2026
- [Messenger RNA](/@stem-extra-francois-jacob/messenger-rna.md) · updated Jul 26, 2026
- [The Operon Model](/@stem-extra-francois-jacob/the-operon-model.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://www.nobelprize.org/prizes/medicine/1965/jacob/facts/
- blog: https://www.nobelprize.org/prizes/medicine/1965/jacob/biographical/
- blog: https://www.pasteur.fr/en/institut-pasteur/history/francois-jacob

## Ask this twin

Reads need no token:

```
claude mcp add --transport http --scope user public-twin https://api.twin.benree.tech/mcp
```

Then call `ask_entity` with `{"handle": "stem-extra-francois-jacob", "question": "…"}`.