Molecular Genetics (O-levels)

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Across
  1. 3. also known as genetic engineering
  2. 5. a term used to describe an organism with a foreign gene
  3. 6. base C
  4. 7. many subunits polymerise (join together) to form this larger molecule
  5. 10. subunit of DNA molecule
  6. 16. the site in a cell where DNA is copied into mRNA
  7. 18. the process where ribosomes "read" the mRNA to synthesise a polypeptide
  8. 19. the site in a cell where ribosomes synthesise proteins
  9. 20. ______ DNA is a mix of bacterial DNA with an inserted foreign gene
Down
  1. 1. when DNA is loosely wrapped around histone proteins; structure is not visible under a light microscope
  2. 2. form of sugar (carbohydrate) found in a DNA molecule
  3. 4. base that pairs with T
  4. 8. base that pairs with C
  5. 9. small circular piece of DNA found in bacterial cells
  6. 11. base T
  7. 12. the process where DNA is copied into mRNA
  8. 13. when DNA is tightly wrapped around histone proteins; structure is visible under a light microscope
  9. 14. orientation of the two strands in a DNA molecule
  10. 15. enzyme that can cut DNA to create sticky ends
  11. 17. enzyme that repairs the broken DNA molecules between complementary sticky ends