The of DNA polymerase isIt is used in the polymerase chain reactionIt adds nucleotides to the growing chain the -3-prime- end-It replaces RNA nucleotides with DNA nucleotidesAll of the above It fixes errors in the replication of DNA

Question

Toppr Admin · Accepted Answer

The correct option is E All of the above
DNA polymerase I serve clean-up functions during replication, recombination, and repair. It has 3' to 5' proofreading exonuclease activity and 5' to 3' exonuclease activity. The 5' to 3' exonuclease activity of DNA polymerase I can replace an error containing a segment of DNA/RNA, paired to the template strand which is then simultaneously replaced by polymerase activity of the same enzyme. The process is called nick translation. DNA polymerase III is main DNA polymerising enzyme that has 5’ to 3’ polymerization and 3’ to 5’ exonuclease proofreading activities. PCR is a process of production of a large number of copies of a sample DNA using enzyme thermostable DNA polymerase.
Thus, the correct answer is option E.

The function of DNA polymerase isIt is used in the polymerase chain reactionIt adds nucleotides to the growing chain at the 3′ end.It replaces RNA nucleotides with DNA nucleotidesAll of the above It fixes errors in the replication of DNA

The function of DNA polymerase is
It is used in the polymerase chain reaction
It adds nucleotides to the growing chain at the $3^{'}$ end.
It replaces RNA nucleotides with DNA nucleotides
All of the above
It fixes errors in the replication of DNA