*10.27 Taq DNA polymerase, which is commonly used for PCR, is a thermostable DNA polymerase that lacks proofreading activity. Other DNA polymerases, such asVent, have proofreading activity.a. What advantages are there to using a DNA polymerase for PCR that has proofreading activity?b. Although some DNA polymerases are more accuratethan others, all DNA polymerases used in PCR introduce errors at a low rate. Why are errors introducedin the first few cycles of a PCR amplification more problematic than errors introduced in the lastfew cycles of PCR amplification?

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