Which one of the following is not a component required for Polymerase Chain Reaction (PCR) ?
Write the importance of following in biotechnology :
(a) Ori (Origin of Replication)
(b) Enzyme Polymerase used in Polymerase Chain Reaction
P and Q are required in the extension step of PCR to extend the primer sequences from the \( 3^{\prime} \) end of each primer. Choose the option which correctly fills the blanks P and Q.
Assertion (A) : Chemically synthesised oligonucleotides are used during annealing in PCR technique.
Reason (R) : The primers bind to the double stranded DNA at their complementary regions.