II UNIDAD GENES Y GENOMAS

UNIDAD DE TRANSCRIPCION

GENES

• CODIFICAN PARA: RNAm, RNAr, RNAt• PSEUDOGENES• GENES REPETIDOS EN SERIE: RNAr, RNAt,

Histonas• GENES SOLITARIOS, solo existe una copia en

el genoma haploide (25-50%)• FAMILIAS DE GENES, comprenden dos o mas

genes similares• ONCOGENES• PROTO-ONCOGENES

TAREA

QUE ES UN GEN ORTOLOGO, PAROLOGO Y HOMOLOGO

EL CODIGO GENÉTICO UNIVERSAL

Fig 10.17 Increased genome size in organisms with increased developmental complexity.

© 2003 John Wiley and Sons Publishers

BACTERIAS

Fig 10.14 Comparison of the relaxed and negatively supercoiled structures of DNA.

© 2003 John Wiley and Sons Publishers

Credit: Courtesy Dr. Svend Freytag.

Fig 10.16 Diagram of the structure of the functional state of the E coli chromosome.

© 2003 John Wiley and Sons Publishers

LOS PLASMIDOS

LOS VIRUS

FAGOS