Protein Synthesis Across 1. The number of codons that exist 3. Sequence of nucleotides on DNA to with RNA polymerase will attach to start transcription 4. mRNA copying DNA's nucleotide sequence 5. 3 nucleotides on tRNA that match to a specific codon on mRNA 6. Type of RNA that helps make up ribosomes 7. Instructions for making proteins in cells 14. The number of amino acids that exist 16. Number of strands making up RNA 19. DNA to RNA to protein 20. Where transcription occurs 23. The site of protein synthesis 24. Start codon 25. Sugar on RNA 26. Chain of amino acids made during translation 27. Ribonucleic acid 28. How mRNA leaves the nucleus after copying DNA 29. DNA strand copied by mRNA 30. Enzyme that attaches RNA nucleotides to the DNA template strand so it can be copied 33. Contains genes 35. Number of strands on the DNA molecule Down 2. UAA, UGA, or UAG codons found at the ends of mRNA 8. Join amino acids together in a polypeptide chain 9. RNA used to assemble amino acids in the cytoplasm 10. Determine your characteristics such as hair color and height 11. Entire gene sequence for all human chromosomes 12. Amino acid coded for by GGU, GGC, GGA, or GGG 13. clover-leaf shaped RNA that carries amino acids to ribosomes to be assembled 15. Three bases in a row on RNA that are used to help put amino acids in the correct order 17. Where ribosomes are made in a cell 18. Number of subunits making up a ribosome 19. Amino acid coded for by the codons UUU or UUC 21. Base on RNA that matches to adenine on DNA 22. The mRNA strand copied from the DNA template 31. Combines with rRNA to make ribosomes 32. Number of tRNA sites inside a ribosome 34. Type of RNA small enough to fit through the pores of the nuclear envelope