Ch.12 DNA & Ch. 2-4 Enzymes Vocab

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Across
  1. 2. The twisted ladder shape of DNA, consisting of two helical strands.
  2. 7. Starting materials in a chemical reaction.
  3. 9. Deoxyribonucleic acid, a molecule that carries genetic information.
  4. 12. An enzyme that adds a few RNA nucleotides to the beginning of the new DNA strand.
  5. 14. Region on an enzyme where substrates bind.
  6. 16. The two strands of DNA run in opposite directions.
  7. 18. Adenine, Thymine, Guanine, and Cytosine; the building blocks of DNA.
  8. 20. The process of copying DNA to produce two identical DNA molecules.
Down
  1. 1. An enzyme that unzips DNA by breaking hydrogen bonds between base pairs.
  2. 3. In DNA, the amount of adenine is equal to thymine, and the amount of guanine is equal to cytosine.
  3. 4. An enzyme that synthesizes new DNA strands by adding complementary nucleotides to the existing strands.
  4. 5. Substance that speeds up a chemical reaction.
  5. 6. Resulting substance(s) from a chemical reaction.
  6. 8. Process that transforms reactants into products.
  7. 10. Energy required to start a chemical reaction.
  8. 11. The specific pairing of nitrogenous bases in DNA: A with T, and G with C.
  9. 13. An enzyme that links the fragments of the backbone of a DNA strand together.
  10. 15. Virus that infects bacteria and injects its DNA into the host cell.
  11. 17. Process of introducing foreign DNA into a cell.
  12. 19. A three-dimensional spiral shape.