Somewhere in a sample of ordinary pond water, a single-celled organism has been quietly breaking one of biology’s most ...

Genetic activity underlies biological functions, so organisms have to make sure that the right genes are expressed at the ...

New live-cell method: Munich scientists created a process to track gene activity in living cells without destroying them, enabling repeated measurements over days. Genetic code surprise: UK teams ...

Human genes are written in long strings of three-letter units composed of four different nucleotides. These units—or codons—specify one of many amino acids, the building blocks of proteins. Multiple ...

Cells manufacture proteins by following instructions encoded in messenger RNA, which is read in three-letter groups called codons. To translate this message, the cell uses molecules called transfer ...

61 codons specify one of the 20 amino acids that make up proteins 3 codons are stop codons, which signal the termination of protein synthesis Importantly, the genetic code is nearly universal, shared ...

Scientists at UC Berkeley have discovered a microbe that bends one of biology’s most sacred rules. Instead of treating a specific three-letter DNA code as a clear “stop” signal, this methane-producing ...

Living things, from bacteria to humans, depend on a workforce of proteins to carry out essential tasks within their cells. Proteins are chains of amino acids that are strung together according to ...