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2. Enzyme responsible for reforming hydrogen bonds and joining nucleotides to a polynucletide strand

  • DNA helicase
  • DNA polymerase
  • RNA polymerase
  • Ligase

3. Enzyme responsible for breaking hydrogen bonds separating the 2 strands

  • RNA polymerase
  • DNA helicase
  • Ligase
  • RNA helicase

4. Purpose of centromere

  • Attach to spindle fibres
  • For spindle fibres to attach to and separate sister chromatids
  • To separate sister chromatids
  • To keep chromatids together

5. What is telophase?

  • Cellular division
  • When the spindle fibres break down and the nuclear envelope and nucleolus reform
  • 2nd stage of mitosis
  • 3rd stage of meiosis

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