Molecular Biology

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Across
  1. 2. segment of mRNA that is removed
  2. 4. type of bond between nitrogen bases in DNA
  3. 7. region where RNA polymerase attaches and begins transcription
  4. 9. addition of a molecular group to DNA molecules that inhibits gene expression
  5. 11. describes process by which DNA genes are expressed
  6. 13. monomer of nucleic acids
  7. 14. set of three nucleotide bases
  8. 15. process that creates proteins from mRNA
  9. 18. small, circular, self-replicating extra DNA strand
  10. 19. when chromosomes do not split properly during meioses
Down
  1. 1. operons that are turned on with inactivation of repressor, often for catabolic pathways
  2. 3. when genetic material is picked up from the environment by competent cells
  3. 5. RNA virus, uses reverse transcriptase
  4. 6. worked with Crick to find structure of DNA
  5. 8. technique using gel and electrical current to separate DNA by size
  6. 10. enzymes that cut up DNA at specific locations
  7. 12. strand of DNA that is replicated continuously
  8. 16. enzyme that binds together Okazaki fragments
  9. 17. unit of functional DNA containing related genes controlled by single promoter region, usually in bacteria