Gel electrophoresis is used for the separation of molecules of similar electric charges on the basis of their size. Hence, smaller the DNA fragment size the farther it moves.
What is the following is correct for the movement of DNA fragments on agarose gel during gel electrophoresis?
Held on 30 Apr 2017 · Verified 9 Jul 2026.
The larger the fragment size, the farther it moves
The smaller the fragment size, the farther it moves
Positively charged fragments move to farther end
Negatively charged fragments do not move
Sign in to track your attempts and accuracy.
Sign in to keep a private note on this question. Nothing you write is ever public.
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:
 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?
Identify the part of a bio-reactor which is used as a foam braker from the given figure. 
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:
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 :
Work through every NEET UG Biotechnology - Principles and Processes PYQ, year by year.