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Study the following statements
1. Restriction endonucleases (molecular scissors) are discovered by Nathan and Smith.
2. Restriction endonucleases are used to cut plasmid and foreign DNA.
3. Plasmids are vectors or vehicles in gene transfer.
4. Recombinant DNA technology given by Stanley Cohen and Herbert Boyer.
Which of the statements given above are correct?


A) 1, 2, 3 and 4

B) 2, 3 and 4

C) 1, 2 and 3

D) None of these

Correct Answer:
A) 1, 2, 3 and 4


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