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The enzyme DNA polymerase in E. coli is ...

The enzyme DNA polymerase in E. coli is a DNA dependent polymerase and also has the ability to proofread the DNA strand being synthesised Explain. Discuss the dual polymerase.

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DNA polymerase is capable of recognising the complementary nucleotides. It also establishes the phosphodiester bonds between adjacent nucleotides of newly formed strands. If a wrong nucleotide enters in this newly formed strand, it is removed by polymerase and new nucleotide is fixed at desired position. This all process is called proofreading.
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