BIOL 1202 Chapter : HowdoesDNAcontaininfo
Document Summary
Plasmids- typically not required for organism to survive. Easy for the cells to take up foreign dna (transformation) ** very easy to insert dna into bacteria. Energetics- cells don"t want to use energy on stuff they don"t need. Promoter- a place that says where the gene starts. Structural genes- this is where these three genes start. Regulator produces repressor- not part of the operon. Bind with co-repressor (tryptophan) to the repressor which turns it into the active repressor. Tryptophan builds up and then shuts it off. Binds with the inducer to make the repressor inactive. Positive gene regulation camp camp receptor protein (crp) (figure 18. 5) Complete genome dna sequence known humans, chimps, flies, worms, and plants . Prokaryotic gene regulation occurs at the level of transcription. One from each parent (46 in each cell) Genes are at set positions on the chromosomes. Levels of regulation figure 18. 6: chromosomal, transcriptional, post- transcription, translation, post- translation.
