When dna replication halts in a polymerase chain reaction, owing to the incorporation of a tagged base into a growing dna chain, a(n) results?

When DNA replication halts growing DNA chain, a CHAIN TERMINATOR SEQUENCING results.
Chain terminator sequencing or Sanger sequencing refers to the process by which several copies of a particular target DNA can be made by the incorporation of a labelled chain terminators into the replication system. 

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