DNA & Gene Expression

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Across
  1. 4. environmental agents that cause mutations
  2. 8. a group of three nucleotides
  3. 9. change or error in DNA
  4. 10. segment of DNA
  5. 12. hold the two strands of DNA together
  6. 13. removing intron portions of the mRNA
  7. 15. transcribed in the nucleus
  8. 16. Universal nature of DNA
  9. 17. type of mutation in which one base is switched for another
Down
  1. 1. deletion or insertion changes the reading frame of the amino acid sequence
  2. 2. a chain of amino acids held together by a peptide bond
  3. 3. complementary to mRNA codon
  4. 5. decoding of an mRNA message into a protein
  5. 6. site of protein synthesis
  6. 7. scientist credited with the discovery of DNA
  7. 11. turning genes on and off
  8. 14. one sugar, one nitrogenous base, one phosphate