Q. Consider the following statements I. Recombinant DNA technology popularly known as genetic engineering is a stream of biotechnology which deals with the manipulation of genetic material by man $in\ vitro$ II. pBR322 is the first artificial cloning vector developed in 1977 by Boliver and Rodriquez from $E.coli$ plasmid III. Restriction enzymes belongs to a class of enzymes called nucleases Which of the statements given above are correct?
A) I and II
B) I and III
C) II and III
D) I, II and III
Explanation
Genetic engineering is a branch of biotechnology, which deals with the manipulation of genetic material by man. The technique of genetic engineering includes (i) formation of ‘recombinant DNA’ (ii) use of gene cloning (iii) gene transfer pBR 322 was the first artificial cloning vector constructed in 1977 by Boliver and Rodriguer. It is widely used in gene cloning experiments Restriction enzymes belongs to a class of enzymes called nucleases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.