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molecular biology

genetics

A Secret Flexibility Found in Life’s Blueprints

A new study reveals that individual genes can create many different versions of the molecular machinery that powers the cell.

synthetic biology

In Newly Created Life-Form, a Major Mystery

Scientists have created a synthetic organism that possesses only the genes it needs to survive. But they have no idea what roughly a third of those genes do.

Quantized Columns

Deep Secrets and the Thrill of Discovery

The biologist Sean B. Carroll rediscovers the scientific thrill of an unexpected revelation.