Which of the following statements is the best definition of a telomerase?

Question

Quizplus · Accepted Answer

Telomerase is an enzyme that helps solve the "end replication problem" by adding short DNA sequences to the end of chromosomes, called telomeres, which prevent the loss of important genetic information during cell division. Option A is incorrect as the enzyme that separates DNA strands is helicase. Option B is incorrect as the enzyme that proofreads and corrects newly synthesized DNA is DNA polymerase. Option D is incorrect as the enzyme that cleaves introns and exons is called a spliceosome.

Which of the Following Statements Is the Best Definition of a Telomerase