Finals Review

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Across
  1. 4. small pieces cut out of Pre mRNA molecules
  2. 7. individuals with the best traits survive
  3. 9. double helix
  4. 11. made continuously of one primer(2 words)
  5. 15. species compete to survive
  6. 17. organisms that adapt to survive and reproduce(2 words)
  7. 21. father of evolution(2 words)
  8. 23. removed and replaced with DNA(2 words)
Down
  1. 1. untwists the double helix and exposes complementary strands
  2. 2. base set
  3. 3. heritable changes located in genes
  4. 5. Darwin observed these birds
  5. 6. unique combination of inherited traits
  6. 8. assembled in segments made of many primers(2 words)
  7. 9. reads along each naked single strand adding the nucleotide(2 words)
  8. 10. decoding of mRNA into protein
  9. 12. species that produces more offspring to survive
  10. 13. small pieces spliced back from from the final mRNA
  11. 14. mutation involving changes in one or few nucleotides(2 words)
  12. 16. chemicals in the air causing mutation
  13. 18. small chain of amino acid
  14. 19. chordate with a backbone
  15. 20. process of change over time
  16. 22. joins the newly synthesized DNA
  17. 23. nucleic acid that consists of a long chain of nucleotides