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प्रश्न
How does one visualise DNA on an agarose gel?
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उत्तर
A compound called Ethidium Bromide stains DNA, which on irradiating with Ultraviolet, fluoresce gives orange light. Hence, DNA fragments appear as orange band in the presence of Ethidium Bromide and UV.
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संबंधित प्रश्न
Name the enzymes that are used for the isolation of DNA from bacterial and fungal cells for recombinant DNA technology.
How does a restriction nuclease function? Explain
Explain briefly:
Restriction enzymes and DNA
How does restriction endonuclease function?
Answer the following question.
Write the use of restriction endonuclease in the formation of recombinant DNA.
Give a reason why :
Single cloning site is preferred in a vector.
The DNA fragment separated on an agarose gel can be visualized by staining with ______.
There is a restriction endonudease called as EcoRI. What does co part in it stands for?
'Restriction' in restriction enzyme refers to
DNA fragments separate according to size through?
While isolating DNA from bacteria, which of the following enzymes is not required?
Would you choose an exonuclease while producing a recombinant DNA molecule?
What does H in’ ‘d’ and ‘III’ refer to in the enzyme Hind III?
A plasmid DNA and a linear DNA (both are of the same size) have one site for a restriction endonuclease. When cut and separated on agarose gel electrophoresis, plasmid shows one DNA band while linear DNA shows two fragments. Explain.
State the principle involved in separation of DNA fragments using gel electrophoresis.
Which of the following represents the specific palindromic recognition sequence cleaved by the restriction endonuclease EcoRI?
Why is it mandatory to cut both the vector DNA and the foreign source DNA with the exact same restriction enzyme when constructing recombinant DNA?
What is the process called when desired, separated DNA bands are physically cut out from the agarose gel and extracted from the gel piece?
