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

Replication and division of nuclei and cells — practice question

Telomerase is an enzyme which attaches nucleotides to telomeres. Which of the following statements about telomerase is correct?

  • AA high concentration of telomerase in a cell damages genes during DNA replication.
  • BA high concentration of telomerase in cancerous cells limits the rate of tumour growth.
  • CThe low concentration of telomerase in stem cells means that these cells can divide an unlimited number of times.
  • DThe low concentration of telomerase in body cells means that these cells can divide a limited number of times.

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