Which of the following describes a key step in performing PCR?</h2></div>

Thermal cycle is used in<span><br> </span></h2></div>

First antibiotic was discovered in the year</h2></div>

The process by which restriction endonuclease cut the DNA molecule?</h2></div>

Use of microbes to manufacture certain food, drugs and chemicals etc. is known as</h2></div>

Which one of the following enzyme cuts the DNA within the specific positions?<br> </h2></div>

Who developed polymerase chain reaction technique and got Nobel Prize<span><br> </span></h2><…

Which of the following is not a method of gene transfer in Bacteria?</h2></div>