Gene Regulation

Gene Regulation

1. Complete copy of DNA

   • except ganetes
     • Sex cells

2. Original Code

   • cell looks and acts different

3. made into proteins

4. contain full set of genes

   • except gametes
   • expressed in specific cells

5. genes can be turned on and off in many ways

   • wasteful to produce proteins when no lactose to be digested
     • when no lactose a repressor protein blocks transcription
   • when present it binds to the repressor protein and moves away
     • the lac of genes are then translated into digestive proteins