Multiple choice

Which of the following enzymes removes nucleotides from the 5’ ends of a duplex to expose single-stranded 3’ ends?

  1. Alkaline phosphatase

  2. Exonuclease III

  3. Bacteriophage λ exonuclease

  4. Terminal transferase

  5. Reverse transcriptase

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bacteriophage λ exonuclease removes nucleotides from the 5’ ends of a duplex to expose single-stranded 3’ ends.