Which of the following is NOT a feature of recombinant DNA technology?

Recombinant DNA (rDNA) technology involves modifying genetic material to create new DNA combinations for various applications. Gene cloning (Option 1): It is a key aspect of rDNA technology where a specific gene is copied and amplified. Use of restriction enzymes (Option 2): These enzymes cut DNA at specific sequences, allowing gene insertion. Formation of recombinant plasmids (Option 4): Plasmids act as vectors to transfer foreign genes into host cells. Isolation of the entire genome (Option 3) is NOT a feature because rDNA technology focuses on isolating specific genes rather than the whole genome. Thus, the correct answer is option (3).