Question of the Week 13.08.03 - How do cells know what they will be when they grow up?
![Question of the Week - From the Naked Scientists show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/034/494/small/question-of-the-week-from-the-naked-scientists.png)
Summary: 5 yr old Georgia asks how did the cells in her mum's tummy know to make her brain cells? A Nobel Laureate provides the answer!
Summary: 5 yr old Georgia asks how did the cells in her mum's tummy know to make her brain cells? A Nobel Laureate provides the answer!