Question

This is b right ?
Which of the following serves as a starting point for duplicate strands of DNA to be copied by PCR?

polymerase
primers
bacteria
restriction enzymes
@jagr2713

Answer 1

CORRECT b.c
In the first step, the two strands of the DNA double helix are physically separated at a high temperature in a process called DNA melting. In the second step, the temperature is lowered and the two DNA strands become templates for DNA polymerase to selectively amplify the target DNA. The selectivity of PCR results from the use of primers that are complementary to the DNA region targeted for amplification under specific thermal cycling conditions.