12.1-12.2 Review Crossword

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