Genetics and protein synthesis.

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Across
  1. 3. The genetic code is read the same across all organisms.
  2. 6. The process of making pre-mRNA using part of DNA as a template.
  3. 12. The bond which joins two amino acids on tRNA.
  4. 14. The central point of a chromosome.
  5. 15. The sugar found in RNA.
  6. 16. The name of the third structure on a protein.
  7. 19. A sequence of three bases in tRNA that are complementary to those in mRNA.
  8. 20. Complementary base to adenine in mRNA.
  9. 21. The process where introns are removed and the functional exons are joined together.
Down
  1. 1. The process by which proteins are synthesized by ribosomes after the process of transcription.
  2. 2. The complementary base pair to cytosine.
  3. 4. The complete set of genes in a cell.
  4. 5. The site of protein synthesis.
  5. 7. A number of alternative forms of a gene.
  6. 8. The sequence of three bases on mRNA that codes for a single amino acid.
  7. 9. Cells in which gene expression takes longer to occur.
  8. 10. A section of a DNA molecule that codes for a specific protein.
  9. 11. The shape of the structure of tRNA.
  10. 13. The DNA base sequences interrupting the protein-coding sequences of a gene.
  11. 14. One of the two side-by-side replicas produced by chromosome duplication.
  12. 17. The protein-coding sequences of a gene.
  13. 18. The shape of a DNA molecule.