Chapter 13/14 Autumn Carter

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Across
  1. 2. each 3 letter "word" in mRNA
  2. 9. chemical or physical agents in the environment
  3. 10. becoming specialized in structure and function
  4. 12. occurs during late interphase of the cell cycle
  5. 14. each tRNA molecule has three unpaired bases
  6. 15. regions of DNA that have specific base sequences
  7. 16. a nucleic acid that consist of a long chain of nucleotides
Down
  1. 1. code for transcription factors that activate other genes
  2. 3. portions that are cut out and discarded
  3. 4. segments of DNA serve as templates to produce complementary RNA molecules
  4. 5. regulates organs that develop in specific parts of the body
  5. 6. mistakes in copying their own DNA
  6. 7. the decoding of an mRNA message into a protein
  7. 8. an organism has extra sets of chromosomes
  8. 11. a group of genes that are regulated together
  9. 13. remaining pieces that are sliced back together to form mRNA