A Levels Biology (9700)•9700/11/O/N/21
Explanation
DNA Replication Nucleotide Addition Process Steps:
- Identify key events in DNA replication: incoming dNTP binds to template via complementary base pairing.
- DNA polymerase catalyzes phosphodiester bond formation between 3' OH of growing strand and 5' phosphate of dNTP.
- Pyrophosphate (PPi) is released after bond formation to drive reaction forward.
- Proofreading may occur, but bonding precedes full incorporation.
Not enough information: The question references undefined steps 1, 2, and 3, making it impossible to evaluate choices accurately.
Final answer: Not enough information.
Topic: Structure of nucleic acids and replication of DNA
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