Regulating Gene Expression To accompany “Regulating Gene Expression” Packet -review packet reading, pictures, and questions

All of your cells contain the same DNA. So how do you have specialized cells? Genes can be turned on and off within each cell type. Why is gene regulation important??? Diff proteins are produced by diff cell types  diff shapes  diff functions

Prokaryotes

Eukaryotes- Before Transcription (simple version) Transcription Factors: ex- Activator enhancerpromoter

Transcription Factors- complicated versioncomplicated version

Eukaryotes- After Transcription (simple version)

Alternative Splicing- p.136

Eukaryotes- After Translation (simple version) Different “tags” send proteins to different locations w/in the cell “tags” = signal sequences

Protein Sorting- p.137

DNA availability

RNA & Protein Degradation microRNAs can “silence” RNA “shelf life”