Ese proceso de transcripción consiste en copiar el ADN como ARN para la producción de proteínas. Tras la consecución del mapa del genoma humano parecía que sólo una pequeña parte del genoma estaba implicada en el proceso y que el resto era lo que se conoce como "ADN basura".
Sin embargo, no parece ser así. Los autores consideran que la porción del genoma necesaria para la transcripción del ARN es diez veces superior a lo que se creía, tras haber trabajado con 11 líneas celulares distintas para buscar en los cromosomas 20 y 21 todas las áreas implicadas en la transcripción.
Webs Relacionadas
Science
http://www.sciencemag.org/
Affymetrix
http://www.affymetrix.com/
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