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प्रश्न
CTTAAG
GAATTC
- What are such sequences called? Name the enzyme used that recognizes such nucleotide sequences.
- What is their significance in biotechnology?
उत्तर
- Palindromic sequences, endonuclease enzyme
- Restriction enzymes can make complementary cut counterparts forming sticky ends for recombination DNA/RDNA technology to facilitate the ligation of vector and foreign DNA.
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संबंधित प्रश्न
Answer the following question.
Write the use of restriction endonuclease in the formation of recombinant DNA.
Restriction enzymes ______.
Which of the given statements is correct in the context of visualizing DNA molecules separated by agarose gel electrophoresis?
While isolating DNA from bacteria, which of the following enzymes is not required?
Which of the following statements does not hold true for restriction enzyme?
Restriction enzymes should not have more than one site of action in the cloning site of a vector. Comment.
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.
What is elution?
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.
What are the protruding and hanging stretches of DNA produced by these restriction enzymes called? Describe their role in the formation of rDNA.
