Microbiology - DNA Replication - Discussion

Discussion Forum : DNA Replication - Section 1 (Q.No. 5)
Which of the following possesses both 5'-3' and 3'-5' exonuclease activity?
Kornberg enzyme
DNA polymerase III
Taq DNA polymerase
None of these
Answer: Option
No answer description is available. Let's discuss.
8 comments Page 1 of 1.

HASSAN said:   4 years ago
DNA pol 1.

5' to 3' exonuclease --> removal of primer.
5' to 3' polymerization ----> add nucleotides in place of primer(removed).
3' to 5'exonculease----> proofreading of this newly synthesized segment.

Muskan said:   4 years ago
Pol I possesses four enzymatic activities:

A 5' --> 3' (forward) DNA-Dependent DNA polymerase activity, requiring a 3' primer site and a template strand.
A 3' --> '5' (reverse) exonuclease activity that mediates proofreading.
A 5' --> '3' (forward) exonuclease activity mediating nick translation during DNA repair.
A 5' --> '3' (forward) RNA-Dependent DNA polymerase activity.

Neha dar said:   6 years ago
What is the function of Kornberg enzyme?

Nanoshe Taye said:   7 years ago
It is pol III which is involved in chromosome replication and it possesses 3'_5' and 5'_3'. And pol I is related to RNA primer removal.

So how that the answer be Kornberg enzyme (pol I)?

Rahul aryan raj said:   8 years ago
What is meant by exonucelease?

Nini said:   1 decade ago
Kornberg enzyme is a DNA polymerase 1 which lacks 5'-3' exonuclease activity.

Mahi said:   1 decade ago
Kornborg is an another name of DNA-Plimerase 1.

Lana said:   1 decade ago
What is kornberg enzyme?

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