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प्रश्न
Suggest a technique to a researcher who needs to separate fragments of DNA.
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उत्तर
Gel electrophoresis is a technique that can be used to separate DNA fragments. Being negatively charged, DNA fragments get separated according to their size as they move towards the anode under the influence of an electric field.
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संबंधित प्रश्न
How are 'sticky ends' formed on a DNA strand? Why are they so called?
Why is the enzyme cellulase needed for isolating genetic material from plant cells and not form the animal cells?
How does a restriction nuclease function? Explain
Answer the following question.
Write the use of restriction endonuclease in the formation of recombinant DNA.
The DNA fragment separated on an agarose gel can be visualized by staining with ______.
A mixture containing DNA fragments a, b, c and d, with molecular weights of a + b = c, a > b and d > c was subject to agarose get electrophoresis. This position of these fragments from cathode to anode to anode sides of the gel would be ______.
Restriction enzymes ______.
There is a restriction endonudease called as EcoRI. What does co part in it stands for?
DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as ______
Which of the following bacteria is not a source of restriction endonuclease?
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?
CTTAAG
GAATTC
- What are such sequences called? Name the enzyme used that recognizes such nucleotide sequences.
- What is their significance in biotechnology?
State the importance of elution in this process.
State the principle involved in separation of DNA fragments using gel electrophoresis.
Identify the activity of endonuclease and exonuclease in the given image.
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?
According to the sieving effect of an agarose gel matrix, which DNA fragments move the farthest and fastest from the loading wells?
