Gel electrophoresis is used for?
Correct answer: D. Separation of DNA fragments according to their size.
- A. Construction of recombinant DNA by joining with cloning vectors.
- B. Isolation of DNA molecules.
- C. Cutting of DNA into fragments.
- D. Separation of DNA fragments according to their size.
Explanation
Electrophoresis is a technique used for the separation of substances of different ionic properties. Since the DNA fragments are negatively charged molecules, they can be separated by allowing them to move towards the anode. DNA fragments move towards the anode according to the size of their molecules through the pores of agarose gel. Thus, the smaller fragments move farther away as compared to larger fragments.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Biotechnology
Biotechnology in health care applies biological organisms, cells or enzymes to diagnose and treat disease. The subject includes recombinant DNA, genetically engineered insulin, vaccines, antibiotics, monoclonal antibodies, gene therapy and techniques such as polymerase chain reaction, while distinguishing therapeutic applications from agricultural and industrial biotechnology.
Practise Biotechnology
731 free Biotechnology MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Biotechnology questions
Which one of the following is commonly used in transfer of foreign DNA into crop plants?
Which of the following are used in gene cloning?
Restriction endonucleases are enzymes which?
The linking of antibiotic resistance gene with the plasmid vector became possible with?
Restriction endonuclease:
Two microbes found to be very useful in genetic engineering are?