Unit 7: Gene Regulation

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Across
  1. 2. Classic example of an inducible operon in E. coli, regulated by lactose
  2. 3. Molecule that inactivates a repressor, allowing gene expression
  3. 6. A cluster of genes under the control of a single promoter in prokaryotes
  4. 7. DNA sequence that decreases transcription when bound by regulatory proteins
  5. 10. Mechanism in eukaryotes where different mRNAs are produced from the same gene
  6. 11. Addition of a methyl group to DNA, often silencing gene expression
  7. 12. The complex of DNA and proteins that can be modified to regulate gene access
  8. 14. DNA segment where a repressor can bind, controlling access to genes
  9. 15. Molecule that activates a repressor to shut off gene expression
  10. 16. DNA sequence where RNA polymerase binds to initiate transcription
Down
  1. 1. Addition of an acetyl group to histones, usually promoting gene expression
  2. 4. DNA sequence that increases transcription when bound by activator proteins
  3. 5. Protein that binds DNA and regulates the rate of transcription
  4. 8. Heritable changes in gene expression not caused by changes in DNA sequence
  5. 9. Protein that increases transcription by binding to DNA regulatory regions
  6. 13. Protein that binds to the operator to block transcription