The Primers in PCR are ____

Question

The primers in PCR are ____.  
A) fragments of mRNA
B) designed to base pair with mRNA
C) free nucleotides
D) radioactive
E) needed to initiate the reaction

Accepted Answer

Primers are short sequences of nucleotides that are specifically designed to bind to the target DNA sequence to initiate the polymerase chain reaction (PCR). They are essential for starting the DNA synthesis process in PCR.