A Protein Problem

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Across
  1. 5. replacement of DNA base
  2. 6. where translation occurs
  3. 7. sequence that codes for amino acids
  4. 9. where transcription occurs
Down
  1. 1. addition of DNA base
  2. 2. removal of DNA base
  3. 3. small organelles that read mRNA sequence
  4. 4. second type of nucleic acid when making proteins
  5. 8. start codon