Unit 8

123456789101112131415161718192021222324252627282930
Across
  1. 3. Medication used against bacterial infections
  2. 15. Binds to a promotor region allowing an enzyme to bind
  3. 16. It seperates DNA fragments by their length
  4. 20. The process where stem cells divide to produce more stem cells
  5. 22. Subjecting cells to a higher temperature then the human body
  6. 23. Same written forward as written reverse
  7. 25. Cuts the DNA strands so that the desired gene can be isolated and then inserted into a vector
  8. 27. A small double stranded DNA which forms a ring
  9. 28. A short length of single stranded DNA
  10. 29. Embryonic stem cells that can differentiate int any cell type found in an embryo
  11. 30. Enzyme that synthesises RNA complementary to a template strand of DNA
Down
  1. 1. More than one triplet can code for an amino acid
  2. 2. A biological process in which cells gain specialised functions in the body and change from one cell type to another
  3. 4. The process of copying out DNA to form preMRNA
  4. 5. Every three bases
  5. 6. Catalyses the formation of phosphodiester bonds
  6. 7. When two molecules can combine because they have a similar structure
  7. 8. A pattern serving as a mechanical guide
  8. 9. Mature mRNA before it is spliced
  9. 10. A marker is a gene that is transferred with the desired gene to enable scientists to identify which cells have been successfully altered and now contain recombinant DNA
  10. 11. Stem cells that can divide to produce any type of body cell
  11. 12. Short sequence of single stranded DNA that is complementary to the 3’ end of DNA
  12. 13. A sequence of nucleotides that signals the start of a gene
  13. 14. Method used to amplify DNA
  14. 17. Over methylation of genes
  15. 18. The study of behaviour and environment can cause changes that affect the way
  16. 19. An element with an atomic number of 1
  17. 21. A squence of three nucleotide bases at one end of a tRNA molecules that is specific to a mRNA codon
  18. 24. Base completmentary to Adenine in RNA
  19. 26. Specialised cells that help organs detect stimuli