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प्रश्न
While isolating DNA from bacteria, which of the following enzymes is not required?
पर्याय
Lysozyme
Ribonuclease
Deoxyribonuclease
Protease
उत्तर
Deoxyribonuclease
APPEARS IN
संबंधित प्रश्न
How are 'sticky ends' formed on a DNA strand? Why are they so called?
Mention the difference in the mode of action of exonuclease and endonuclease.
Suggest a technique to a researcher who needs to separate fragments of DNA.
Do eukaryotic cells have restriction endonucleases? Justify your answer.
Restriction enzymes ______.
DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as ______
A specific recognition sequence identified by endonucleases to make cuts at specific positions within the DNA is ______
Which of the following enzymes catalyse the removal of nucleotides from the ends of DNA?
Carefully observe the given picture. A mixture of DNA with fragments ranging from 200 base pairs to 2500 base pairs was electrophoresed on agarose gel with the following arrangement.
(a) What result will be obtained on staining with ethidium bromide? Explain with reason.
(b) The above setup was modified and a band with 250 base pairs was obtained at X.
What change(s) were made to the previous design to obtain a band at X? Why did the band appear at position X?
How are DNA fragments visualised once they are separated by gel electrophoresis?
