Q. Consider the following statements:
1.Restriction enzymes are used as molecular scissors to cut DNA at non-specific, random sequences to ensure genetic diversity.
2.Plasmids are large, linear DNA molecules found inside the chromosomal DNA of most bacteria.
3.Biolistics is a method where DNA-coated metal particles are shot into plant cells to achieve transformation.
Which of the statements given above is/are correct?
Answer: B
Notes:
Explanation:
- Statement 1 is incorrect: Restriction enzymes cut DNA at specific sequences, not random ones.
- Statement 2 is incorrect: Plasmids are small, circular, and found outside the chromosomal DNA.
- Statement 3 is correct: Biolistics (gene gun) is a valid method for inserting DNA into plant cells.
