AP BIO_Unit 6

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Across
  1. 1. tool to amplify DNA
  2. 5. ribosome reads 5’-->3’. AUG=start (Met).
  3. 7. this helps unwind DNA during replication
  4. 8. (Meselson-Stahl) each new DNA=1 old + 1 new strand
  5. 10. ______ mutations: change protein structure. Important for evolution.
  6. 11. introns out, exons kept
  7. 16. extends telomeres in germ/stem cells, preventing chromosome shortening
Down
  1. 2. _______ enzymes: cut at specific sequences
  2. 3. Point _______: silent, missense, nonsense
  3. 4. _______ operon; repressor blocks without lactose
  4. 5. RNA pol binds promoter (TATA box)
  5. 6. ______ mutations: change when/where/how much gene is expressed. Important for evolution.
  6. 9. RNA primer
  7. 12. ______-Cas9: precise gene editing
  8. 13. _____ electrophoresis: separate by size
  9. 14. UAA/UAG/UGA; these codons signal this.
  10. 15. insertion or deletion shifts reading frame, usually devastating.