2026 · Q89
Consider the following statements about genetic engineering :
- 1The technique of genetic engineering involves creation of recombinant DNA, use of gene cloning and gene transfer.
- 2Restriction enzymes cut DNA at specific locations.
- 3Restriction enzymes split the entire double-stranded DNA into two strands.
Which of the statements given above is/are correct?
general-sciencebiotech-environment-science
- A1 and 2
- B1 only
- C1 and 3
- D2 and 3
Explanation
Genetic engineering involves creating recombinant DNA, gene cloning and gene transfer — statement 1 is correct. Restriction endonucleases cut DNA at specific recognition sequences — statement 2 is correct. They do not split the entire double-stranded DNA molecule into two separate strands; they make targeted cuts producing fragments — statement 3 is false. Hence statements 1 and 2.