Advertisements
Advertisements
Question
Answer the following question.
Explain the significance of palindromic nucleotide sequence in the formation of recombinant DNA.
Advertisements
Solution
The palindromic sequences i.e. the sequence of base pairs read the same on both the DNA strands when the orientation of reading is kept the same, eg :
5' —— GAATTC —— 3'
3' —— CTTAAG —— 5'
- Every endonuclease inspects the entire DNA sequence for the palindromic recognition sequence.
APPEARS IN
RELATED QUESTIONS
Explain with the help of a suitable example the naming of a restriction endonuclease.
Mention the difference in the mode of action of exonuclease and endonuclease.
Distinguish between exonuclease and endonuclease.
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 ______.
Which of the following bacteria is not a source of restriction endonuclease?
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?
Restriction enzymes should not have more than one site of action in the cloning site of a vector. Comment.
Given below is the stepwise schematic representation of the process of electrophoresis. Identify the 'alphabets' representing
- Anode end
- smallest/lightest DNA strand in the matrix
- Agarose gel

'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.
