How Does the Enzyme Telomerase Meet the Challenge of Replicating

question 37

Multiple Choice

How does the enzyme telomerase meet the challenge of replicating the ends of linear chromosomes?

• A) It adds a single 5' cap structure that resists degradation by nucleases.
• B) It causes specific double-strand DNA breaks that result in blunt ends on both strands.
• C) It causes linear ends of the newly replicated DNA to circularize.
• D) It catalyzes the lengthening of telomeres, compensating for the shortening that could occur during replication without telomerase activity.
• E) It adds numerous GC pairs, which resist hydrolysis and maintain chromosome integrity.

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