Rule-breaking discovery: A freshwater ciliate uses stop codons to build amino acids instead of ending proteins, defying the 'universal' genetic code. Genetic code flexibility: The organism reassigns ...

Genetic code surprise: An Oxford pond microbe uses two universal stop codons to code for amino acids, breaking a key rule of molecular biology. Why it matters: The discovery could alter evolutionary ...

A routine experiment with a new single-cell DNA sequencing method turned into a surprising scientific twist when researchers ...

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The genetic code acts as life’s instruction manual, telling cells how to build proteins from DNA and RNA. Though it's a marvel of molecular precision, the path it took to evolve remains unclear. Fresh ...