The correct sequence of steps involved in polymerase chain reaction (PCR) are:  A. DNA polymerase is used to extends the primers using oligonucleotides. .Desired DNA fragments are denatured.B C. Amplified fragments are ligated with the vector for cloning.D. Oligonucleotides are added  Choose the correct answer from the options given below: – Answer & Explanation | CUET Subject PYQ – Dubuddy