2026 · Q117
Which of the following statements is/are associated with role of enzymes in genetic engineering?
- 1Exonucleases remove nucleotides from the ends of DNA
- 2Restriction endonucleases are used to form recombinant molecule of DNA Select the answer using the code given below:
General KnowledgeBiology
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Explanation
Exonucleases remove nucleotides from the ends (5' or 3') of DNA strands (statement 1 correct), and restriction endonucleases cut DNA at specific sites to generate fragments used in constructing recombinant DNA molecules (statement 2 correct). The answer is (C) Both 1 and 2.