Biology 9700 · AS & A Level · Replication and division of nuclei and cells

Replication and division of nuclei and cells — practice question

Which row identifies the roles of the enzymes DNA polymerase and DNA ligase?

  • ADNA polymerase: adds nucleotides in a $5'\text{ to }3'$ direction; DNA ligase: joins sections of DNA together on the lagging strand
  • BDNA polymerase: adds nucleotides in a $3'\text{ to }5'$ direction; DNA ligase: joins sections of DNA together on the leading strand
  • CDNA polymerase: adds nucleotides in a $3'\text{ to }5'$ direction; DNA ligase: joins sections of DNA together on the lagging strand
  • DDNA polymerase: adds nucleotides in a $5'\text{ to }3'$ direction; DNA ligase: joins sections of DNA together on the leading strand

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