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प्रश्न
Give a reason why :
Single cloning site is preferred in a vector.
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उत्तर
Cloning sites are short segments of DNA that contain sites for restriction enzymes. Single cloning site is preferred in a vector because multiple cloning sites would result in the generation of several fragments thus complicating the process.
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संबंधित प्रश्न
Explain with the help of a suitable example the naming of a restriction endonuclease.
How are 'sticky ends' formed on a DNA strand? Why are they so called?
Answer the following question.
Write the use of restriction endonuclease in the formation of recombinant DNA.
Which of the following radioisotope is not suitable for DNA labeling based studies?
Molecular scissors, which cut DNA at specific site is ______.
Which of the given statements is correct in the context of visualizing DNA molecules separated by agarose gel electrophoresis?
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Given below is the restriction site of a restriction endonuclease Pst-I and the cleavage sites on a DNA molecule.
\[\ce{5' C - T - G - C - A \overset{\downarrow}{-}{G 3'}}\]
\[\ce{3' G\underset{\uparrow}{-} A - C - G - T - C 5'}\]
Choose the option that gives the correct resultant fragments by the action of the enzyme Pst-I.
'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.
State the principle involved in separation of DNA fragments using gel electrophoresis.
