Advertisements
Advertisements
Question
Answer the following question.
Explain the significance of palindromic nucleotide sequence in the formation of recombinant DNA.
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
Why is the enzyme cellulase needed for isolating genetic material from plant cells and not form the animal cells?
Suggest a technique to a researcher who needs to separate fragments of DNA.
How does a restriction nuclease function? Explain
Make a chart (with diagrammatic representation) showing a restriction enzyme, the substrate DNA on which it acts, the site at which it cuts DNA and the product it produces.
The DNA fragment separated on an agarose gel can be visualized by staining with ______.
Would you choose an exonuclease while producing a recombinant DNA molecule?
Restriction enzymes that are used in the construction of recombinant DNA are endonucleases which cut the DNA at ‘specific-recognition sequence’. What would be the disadvantage if they do not cut the DNA at specific-recognition sequence?
How does one visualise DNA on an agarose gel?
State the importance of elution in this process.
How are DNA fragments visualised once they are separated by gel electrophoresis?