Cuerpo Digital Blog

To many, Steven Spielberg is the most successful filmmaker of all times. Born on December 18, 1947, he grew up with his parents and three sisters in Ohio and other North American states. As a child, he was never interested in his studies. His true interest was in filmmaking and he used his family video camera to record all kinds of scenes and make amateur films. He sometimes showed them in his home and charged admission. His sisters sold popcorn. He was a child of great imagination and he liked to impress his younger sisters using special effects and props he created Spielberg made his first film when he was 12 years old. When he was 16, he made a two-hour sciences fiction film about an encounter with aliens. His father rented a local cinema to show the film and in one night he got back the $500 he had spent making it. He applied to film school twice but he was not admitted because his secondary school grades were not high enough. He decided to get a job at Universal Studi...

Las mutaciones son cambios o alteraciones en la información genética de un organismo, que tiene influencia en sus características y se pueden transmitir a la descendencia. Las mutaciones pueden ser cromosómicas o genéticas . La mutación por sustitución  Es el reemplazo de una base nitrogenada por otra, por lo que únicamente se cambia la información del codón que contiene a esa base. La mutación por inserción En un punto de la secuencia de bases, se inserta una base incorrecta, lo que determina un "corrimiento hacia atrás" del resto de las bases nitrogenadas; es decir, se cambian todos los codones a partir del lugar de la inserción. La mutación por deleción Ocurre cuando en un punto de la secuencia de bases, se elimina una base, lo que produce un "corrimiento hacia delante" del resto de las bases nitrogenadas. Se modifican todos los codones a partir del sitio de la deleción. CONSECUENCIAS DE LAS MUTACIONES: Las mutaciones sin sentido producen que...