AP Biology Chapter 14 Vocabulary Crossword

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Across
  1. 2. strand that is replicated continuously (2 words)
  2. 8. purine is replaced with a pyrimidine or pyrimidine is replaced with a purine (2 words)
  3. 10. Y-shaped structure formed during DNA replication (2 words)
  4. 11. mutation that takes place in the cells due to natural chemical reactions without any external agent (2 words)
  5. 14. DNA fragment that is created in short stretches on the lagging strand (2 words)
  6. 16. results from exposure to chemicals or environmental agents (2 words)
  7. 18. enzyme that catalyzes the formation of linkage between 3' and 5' ends of DNA (1 word)
  8. 20. purine is replaced with a purine or pyrimidine is replaced with a pyrimidine (2 words)
  9. 21. mutation that affects a single base (2 words)
  10. 22. type of mechanism which mismatched bases are removed after replication (2 words)
Down
  1. 1. enzyme that causes underwinding/overwinding of DNA during replication (1 word)
  2. 3. DNA mechanism in which the wrong base, along with a few other nucleotides are removed (3 words)
  3. 4. variation in the nucleotide sequence (1 word)
  4. 5. strand that is replicated in short fragments and away from the replication fork (2 words)
  5. 6. ring-shaped protein that holds the DNA polymerase onto the DNA strand (2 words)
  6. 7. protein that binds to the single-stranded DNA (4 words)
  7. 9. enzyme that creates the RNA primer (1 word)
  8. 12. external DNA is taken up by a cell (1 word)
  9. 13. technique used to separate DNA fragments according to size (1 word)
  10. 15. enzyme that helps to open up the DNA helix by breaking the hydrogen bonds (1 word)
  11. 17. mutation that is not expressed (2 words)
  12. 19. function of DNA polymerase that reads the newly added base before adding the next one (1 word)