Ch 17

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Across
  1. 2. A type of RNA that helps make up the ribosome.
  2. 3. The process of making an RNA copy from a DNA sequence.
  3. 7. Proteins that help turn specific genes on or off by controlling transcription. (2 words no space)
  4. 9. The type of RNA that carries the genetic code from DNA to the ribosome.
  5. 13. The cellular machines that build proteins.
  6. 15. Three-letter "words" on mRNA that specify which amino acid to add.
  7. 16. tail poly A added to the end of a mRNA
  8. 17. The process of cutting out unwanted sections of RNA and joining the remaining parts. (2 words no space)
Down
  1. 1. A section of DNA that tells an enzyme where to start making RNA.
  2. 4. Expression The process of turning on a gene to make a protein.
  3. 5. The process of using the genetic code in mRNA to make a protein.
  4. 6. A nucleic acid, usually single-stranded and uses uracil instead of thymine.
  5. 8. Three-letter "words" on tRNA that match up with codons.
  6. 10. The type of RNA that carries an amino acid to the ribosome.
  7. 11. The rules that a cell uses to translate information in mRNA into a protein. (2 words no space)
  8. 12. The base that pairs with adenine in RNA.
  9. 14. backwards G