How organisms are organised
Like any well-run operation, a body is made of specialised parts
ALL LIFE is made of cells. But to build a complex, multicelled organism from those cells almost always requires them to come in more than one type. This means that as cells multiply in a growing organism they need to differentiate, which they do by expressing different subsets of genes from within the genome they all share. Different patterns of gene expression produce different types of cell.
This article appeared in the Schools brief section of the print edition under the headline “Leaves, limbs and lights”
Schools brief August 14th 2021
From the August 14th 2021 edition
Discover stories from this section and more in the list of contents
Explore the editionDiscover more
AI needs regulation, but what kind, and how much?
Different countries are taking different approaches to regulating artificial intelligence
LLMs will transform medicine, media and more
But not without a helping (human) hand
How AI models are getting smarter
Deep neural networks are learning diffusion and other tricks
The race is on to control the global supply chain for AI chips
The focus is no longer just on faster chips, but on more chips clustered together
AI firms will soon exhaust most of the internet’s data
Can they create more?
A short history of AI
In the first of six weekly briefs, we ask how AI overcame decades of underdelivering