What reduces errors in DNA replication?

Answer 1

There are an average of 6 errors for every cell division, most of which either occur in the 95% percent of DNA that does not code for proteins or are relatively unharmful substitution mutations.

Answer 2

Replication of DNA must be error free because if there is an error, then there will be a mutation on the gene. It is not preferred to have mutations because an organism might die if it has more than 3 mutations. It affects the gene adversely. There might be some complications in the gene or the chromosome and hence cause disorders or certain syndromes.

Answer 3

Probably because replication implies the cell is making an exact copy of itself. At the moment of replication, each component of the DNA splits in two - therefore each copy should be identical. Mistakes usually happen due to external influences.

Answer 4

DNA polimerase also acts as a correction mecanism for the strands it helps assemble.

Answer 5

A DNA molecule seldom replicates incorrectly because of its corrective mechanisms. One mechanism is that the DNA polymerase III checks the work as it creates the DNA.

Answer 6

DNA polymerase "proofreads" as it goes, discarding mismatched nucleotides and inserting correct ones.