Plasmids, small circular DNA molecules found in bacteria, may contain antibiotic-resistance genes and have the ability to replicate independently. Bacteria can transfer these plasmids to one another, ...

How does the cell convert DNA into working proteins? The process of translation can be seen as the decoding of instructions for making proteins, involving mRNA in transcription as well as tRNA. But ...

Proteins, one of the smallest building blocks of life on Earth, hold promise for answering some of biology's biggest questions. Consisting of amino acids strung together into peptide chains, these ...

The origins of millions of tiny proteins in our bodies, previously assumed to be useless, have now been discovered. A study published on February 17 in the journal Molecular Cell describes how these ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers analyzing 4.3 billion dipeptides say tiny protein pairs hold clues to how the genetic code formed and expanded over ...