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प्रश्न
Which of the following bacteria is not a source of restriction endonuclease?
विकल्प
Haemophilus influenzae
Escherichia coli
Entamoeba coli
Bacillus amyloliquefaciens
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उत्तर
Entamoeba coli
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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.
Name and describe the technique that helps in separating the DNA fragments formed by the use of restriction endonuclease
Do eukaryotic cells have restriction endonucleases? Justify your answer.
Distinguish between exonuclease and endonuclease.
Explain the roles of the following with the help of an example each in recombinant DNA technology :
Restriction Enzymes
Answer the following question.
Write the use of restriction endonuclease in the formation of recombinant DNA.
The total number of nucleotide sequences of DNA that code for a hormone is 1530. The proportion of different bases in the sequence is found to be Adenine = 34%, Guanine = 19%, Cytosine = 23%, Thymine = 19%.
Applying Chargaff’s rule, what conclusion can be drawn?
There is a restriction endonudease called as EcoRI. What does co part in it stands for?
'Restriction' in restriction enzyme refers to
'Restriction' in Restriction enzyme refers to ______.
The role of DNA ligase in the construction of a recombinant DNA molecule is ______.
Which of the following statements does not hold true for restriction enzyme?
What does H in’ ‘d’ and ‘III’ refer to in the enzyme Hind III?
How does one visualise DNA on an agarose gel?
A mixture of fragmented DNA was electrophoresed in an agarose gel. After staining the gel with ethidium bromide, no DNA bands were observed. What could be the reason?
What is elution?
State the importance of elution in this process.
'EcoRI' has played a very significant role in rDNA technology.
- Explain the convention for naming EcoRI.
- Write the recognition site and the cleavage sites of this restriction endonuclease.
