Consider a Cell in Which One of the Proteins or Enzymes

question 166

Multiple Choice

Consider a cell in which one of the proteins or enzymes involved in DNA replication is altered in a way that results in an increased rate of single-base changes in the newly synthesized DNA strand. Which function of which protein is MOST likely disrupted in this situation?

• A)the unwinding function of helicase
• B)the winding stress relief function of topoisomerase II
• C)the fragment joining function of DNA ligase
• D)the proofreading function of DNA polymerase
• E)the strand separation function of single-stranded binding protein

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