noun Descargar 🔗Compartir Guanina A substance first obtained from guano; it is a nucleic base and pairs with cytosine in DNA and RNA (by means of three hydrogen bonds). Examples : "The scientist studied the guanine content in the DNA samples from the ancient fossils. " El científico estudió el contenido de guanina en las muestras de ADN de los fósiles antiguos. biochemistry biology chemistry substance compound Chat con IAJuego de vocabularioPracticar lectura