Restriction endonuclease recognizes a particular palindromic sequence and degrades the same. It was so, called because it restricted the growth of bacteriophase in the bacterium ( eg,E. coli). The convention for naming these enzymes is the first letter of the name comes from the bacterial genus; the second two letters come from the species, and the fourth letter from strain, eg, Eco RI comes from Escherichia coli RY13. Roman numbers following the names indicate the order in which the enzymes were isolated.
There is a restriction endonuclease called E c o RI. What does 'co' part in it stand for?
NEET UG 2011 — Zoology Biotechnology - Principles and Processes
2011mcqeasy
There is a restriction endonuclease called Eco RI. What does 'co' part in it stand for?
Official previous-year question
Held on 30 Apr 2011 · Verified 9 Jul 2026.
Options
- A
Coelom
- B
Coenzyme
- C
coli
- D
Colon
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
Biotechnology - Principles and Processes 2025Biotechnology - Principles and Processes 2024Biotechnology - Principles and Processes 2023Biotechnology - Principles and Processes 2022Biotechnology - Principles and Processes 2021Biotechnology - Principles and Processes 2020Biotechnology - Principles and Processes 2019Biotechnology - Principles and Processes 2018Biotechnology - Principles and Processes 2017Biotechnology - Principles and Processes 2016Biotechnology - Principles and Processes 2015Biotechnology - Principles and Processes 2014
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:
2025easy
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:
2025medium
Identify the part of a bio-reactor which is used as a foam braker from the given figure. 
2025easy
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 :
2025medium
 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?
2025medium
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.