Across
- 3. enzyme that unwinds double helical DNA
- 4. joins Okazaki fragments by phosphodiester bond
- 6. three major classes of this
- 7. amino acid, Thr
- 9. adenine and guanine are these
- 11. builds RNA primers
- 13. inherited DNA changes
- 14. strand of DNA not used for transcription
- 15. sugar, nitrogenous base and phosphate grouping
- 16. ribosomal RNA builds these
- 17. site on ribosome where tRNA bring in an amino acid
- 19. non-coding region of DNA
- 20. the coding part of a gene
- 21. carries genetic information, for short
- 22. a group of 3 nitrogenous bases
- 23. adding a 5’ end to mRNA
Down
- 1. noncoding DNA on the end of chromosomes
- 2. start codon, methionine
- 5. when an extra nucleotide is placed in a DNA strand
- 8. hereditary material in the nucleus experimenter
- 10. how DNA replicates
- 12. when one base replaces another
- 17. complementary to mRNA codon
- 18. string of adenine base pairs at the end of an mRNA transcript