Chapter 12 Vocab

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Across
  1. 3. final step in protein synthesis
  2. 5. Where the mRNA transcripts are read by a ribosome and converted into the sequence of amino acids in polypeptides
  3. 9. The entire complex of mRNA and multiple ribosomes
  4. 10. Process where RNA molecules are produced based on a DNA template
  5. 13. fork- A ‘V’ shape in DNA where replication occurs
  6. 15. stage during protein synthesis when a polypeptide increases in length one amino acid at a time
  7. 17. transcript The stop sequence causes RNA polymerase to stop transcribing the DNA and to release the mRNA molecule
  8. 20. A group of three that is complementary and antiparallel to a specific mRNA codon.
Down
  1. 1. polymerase- an enzyme complex that carries out complementary base pairing and joining of DNA
  2. 2. step where ribosomes move forward and the peptide-bearing tRNA is now in the P site of the ribosome
  3. 4. DNA coding unit
  4. 6. RNA (mRNA)- takes a message from DNA in the nucleus to the ribosomes in the cytoplasm.
  5. 7. code- Genetic code made up of three nucleotides
  6. 8. RNA (tRNA)- transfers amino acids to the ribosomes
  7. 11. RNA (rRNA)- makes up the ribosomes where polypeptides are synthesized
  8. 12. first stage of translation; small ribosomal unit binds to 5’ end
  9. 14. protein coding regions
  10. 16. defines the start and direction of transcription, and the strand to be transcribed
  11. 18. polymerase Joins nucleotides together ( 5’---->3’ direction)
  12. 19. hypothesis tRNAS can sometimes pair with more than one codon resulting in fewer overall tRNA than codons.
  13. 21. non protein coding regions