Hidden within the genetic code lies the "triplet code," a series of three nucleotides that determine a single amino acid. How did scientists discover and unlock this amino acid code? Once the budding ...

I wonder if the pre-LUCA ribosome itself might have been radically different before we fixed on 20 amino acids? Obviously the protein scaffolding would be different, but also it could afford to be a ...

Genes are the building blocks of life, and the genetic code provides the instructions for the complex processes that make organisms function. But how and why did it come to be the way it is? "We find ...

Prior research has shown that DNA codes for just 20 amino acids, the building blocks for making all the proteins used by living creatures. These are known as alpha amino acids. Prior research has also ...

A big question in the origin of life on Earth is why it is based solely on "left-handed" amino acids. Studies on asteroid Bennu's chemical building blocks deepens the mystery. Credit: Christoph ...