DNA Structure and Replication 7.1

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Across
  1. 2. The type of strand that is made consciously. following the fork as it opens
  2. 3. What is the short lengths of DNA that are produced by the discontinuous replication of the lagging strand
  3. 4. The protein that generates a short RNA primer on the the template strands
  4. 6. One of the two types of polymerase which removes the RNA primers on the leading and lagging strands to replace it with DNA
  5. 9. The protein that can only add new nucleotides in a 5' to 3' direction
  6. 14. What is the process used to identify people based on their DNA profiles
  7. 17. What protein keeps the separated strands apart whilst the template strand is copied
  8. 19. Two molecules that are side by side but run in opposite directions
  9. 20. What do you refer to modified nucleotides used in the chain-termination method
  10. 21. The type of strand that is made discontinuously, in short fragments away from the fork.
  11. 22. The protein that releases the strain within the supercoiled areas to allow helicase to access the helix
  12. 23. What is the non-coding sequence of DNA found within the genes of eukaryotic organisms
Down
  1. 1. The eukaryotic nuclear DNA is associated with proteins to form chromatin
  2. 5. The place consisting of a strand of DNA coiled around a core of eighth proteins to form a bead-like structure which help to supercoil the DNA
  3. 7. The short, non-coding regions of the DNA that are analysed in DNA profiling
  4. 8. One of the two types of polymerase that starts the replication next to the RNA primer linking nucleotides in a 5' to 3' direction to form a new strand
  5. 10. What part of the diet can be related to reducing the rate of telomere shortening
  6. 11. What process allows the nucleotide base sequence of an organism's genetic material to be determine
  7. 12. The protein responsible for the unwinding of the DNA double helix at the replication fork
  8. 13. What are the certain regions that code for the production of polypeptides in DNA molecules
  9. 15. What protein joins up the Okazaki fragments by catalysing the formation of sugar-phosphate bonds
  10. 16. Protects the DNA, facilitates the movement of chromosomes during cell division and can be tagged with proteins
  11. 18. The region of repeated nucleotide sequences at the end of chromosomes that provide protection during cell division