Genetic engineering, also called recombinant DNA technology, involves the group of techniques used to cut up (by restriction enzymes) and join together (via DNA ligase) genetic material, especially DNA from different biological species, and to introduce the resulting hybrid DNA into an organism in order to form new combinations of heritable genetic material. Related Theory Restriction endonucleases cut DNA molecules at specific places into many smaller fragments called restriction fragments.
Manipulation of DNA in genetic engineering became possible due to the discovery of:
NEET UG 2002 — Zoology Biotechnology - Principles and Processes
Manipulation of DNA in genetic engineering became possible due to the discovery of:
Held on 30 Apr 2002 · Verified 9 Jul 2026.
Options
- A
restriction endonuclease
- B
DNA ligase
- C
transcriptase
- D
primase
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Biotechnology - Principles and Processes in other years
More NEET UG Biotechnology - Principles and Processes questions
Which of the following enzyme(s) are NOT essential for gene cloning? A. Restriction enzymes B. DNA ligase C. DNA mutase D. DNA recombinase E. DNA polymerase Choose the correct answer from the options given below:
The blue and white selectable markers have been developed which differentiate recombinant colonies from non-recombinant colonies on the basis of their ability to produce colour in the presence of a chromogenic substrate. Given below are two statements about this method: Statement I : The blue coloured colonies have DNA insert in the plasmid and they are identified as recombinant colonies. Statement II : The colonies without blue colour have DNA insert in the plasmid and are identified as recombinant colonies. In the light of the above statements, choose the most appropriate answer from the options given below:
Identify the part of a bio-reactor which is used as a foam braker from the given figure. 
Given below are two statements : Statement I: The DNA fragments extracted from gel electrophoresis can be used in construction of recombinant DNA. Statement II : Smaller size DNA fragments are observed near anode while larger fragments are found near the wells in an agarose gel. In the light of the above statements, choose the most appropriate answer from the options given below :
 In the above represented plasmid, an alien piece of DNA is inserted at EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies?
Other Zoology topics for NEET UG
Keep practicing Biotechnology - Principles and Processes
Work through every NEET UG Biotechnology - Principles and Processes PYQ, year by year.