Artificial intelligence is giving machines the power to generate videos, write computer code and even carry on a conversation.

It is also accelerating efforts to understand the human body and fight disease.

On Wednesday, Google DeepMind, the tech giant’s central artificial intelligence lab, and Isomorphic Labs, a sister company, unveiled a more powerful version of AlphaFold, an artificial intelligence technology that helps scientists understand the behavior of the microscopic mechanisms that drive the cells in the human body.