Why are primers required in the DNA replication process?
Answers
A primer is a short single strand of RNA or DNA (generally about 18-22 bases) that serves as a starting point for DNA synthesis. It is required for DNA replication because the enzymes that catalyze this process, DNA polymerases, can only add new nucleotides to an existing strand of DNA.
ANSWER :-
Primer requirement :-
DNA replicates in the 5’ to 3’direction in each replicon.
The new strand is formed in the 5’-3’ direction.
Before the synthesis of new DNA strand, a small RNA primer is synthesised.
An enzyme called primase produces the primer.
Primers are small chemically synthesised oligonucleotides.
Primers are needed to initiate base pairing elongation.
RNA primers are short nucleotide sequences that are needed to initiate replication.
There is a requirement of two primers.
Taq DNA polymerase enzyme usually works on very high temperature under certain conditions.
A group of short chains of primers are more stable to bind to their nearby pairs.
