12.1-12.2 Review Crossword

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Across
  1. 4. A base that contains nitrogen
  2. 5. The nitrogenous bases are the "_____" of the DNA ladder
  3. 7. The R strain is rough and _____
  4. 9. Watson and Crick described the structure of DNA as a _____
  5. 12. Name of the 5-carbon sugar in DNA
  6. 14. Deoxyribose and a phosphate group are the "_____" of the DNA ladder
  7. 16. Animal used in Griffith's experiments
  8. 19. Process in which one strain of bacteria is changed by a gene or genes from another strain of bacteria
  9. 21. Tiny, nonliving particle that infects living cells
  10. 22. Building blocks of nucleic acids
Down
  1. 1. Third step of bacteriophage formation
  2. 2. The S strain is smooth and _____
  3. 3. Type of virus that infects bacteria
  4. 5. Different varieties of the same bacteria
  5. 6. Only pairs with Guanine
  6. 8. First step of bacteriophage formation
  7. 10. Fifth step of bacteriophage formation
  8. 11. Only pairs with Thymine
  9. 13. Serious lung disease studied by Griffith
  10. 15. Attempted to figure out how bacteria made people sick
  11. 17. One side of the DNA ladder is a DNA _____
  12. 18. Empty shell made of protein
  13. 20. Both sides of the DNA ladder is a DNA _____