HHB Unit 1 KA3

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Across
  1. 3. copying of DNA sequences to make a primary transcript
  2. 6. carries a copy of the DNA code from nucleus to ribosome
  3. 9. section of DNA that codes for protein
  4. 13. RNA base (replaces Thymine)
  5. 14. joining of exons following the removal of introns from a primary transcript
  6. 15. short strand of amino acids
  7. 17. ribonucleic acid
  8. 18. transcription and translation of a gene to synthesise proteins
  9. 19. transfers specific amino acids to the mRNA on the ribosomes
  10. 20. non-coding sequence of DNA
  11. 21. outward appearance of an organism
Down
  1. 1. site of protein synthesis, composed of rRNA and protein
  2. 2. sequence of three bases on the tRNA that codes for a specific amino acid
  3. 4. site on tRNA to which a specific amino acid binds
  4. 5. bonds strong chemical link between amino acids in the primary structure of a polypeptide
  5. 7. type of RNA that makes up ribosomes
  6. 8. enzyme involved in synthesis of primary transcripts from DNA
  7. 10. sequence of three bases on mRNA that codes for a specific amino acid
  8. 11. unit of polypeptide structure
  9. 12. production of a polypeptide at a ribosome using information encoded in mRNA
  10. 16. molecule made when DNA is transcribed