हिंदी

Why is the enzyme cellulase needed for isolating genetic material from plant cells and not form the animal cells?

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प्रश्न

Why is the enzyme cellulase needed for isolating genetic material from plant cells and not form the animal cells?

Why is the enzyme cellulase used for isolating genetic material from plant cells but not for animal cells?

अति संक्षिप्त उत्तर
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उत्तर

Plant cells have a cell wall made up of cellulose, whereasanimal cells lack cell wall and do not contain cellulose. Therefore, the enzyme cellulase is needed for isolating genetic material from plant cells only.

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2012-2013 (March) Delhi Set 1

संबंधित प्रश्न

Suggest a technique to a researcher who needs to separate fragments of DNA.


Name the enzymes that are used for the isolation of DNA from bacterial and fungal cells for recombinant DNA technology.


Name and describe the technique that helps in separating the DNA fragments formed by the use of restriction endonuclease


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.


Explain briefly:

Restriction enzymes and DNA


How does restriction endonuclease function?


Answer the following question.
Write the use of restriction endonuclease in the formation of recombinant DNA.


DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as ______


Which of the given statements is correct in the context of visualizing DNA molecules separated by agarose gel electrophoresis?


The role of DNA ligase in the construction of a recombinant DNA molecule is ______.


Which of the following bacteria is not a source of restriction endonuclease?


Which of the following statements does not hold true for restriction enzyme?


Would you choose an exonuclease while producing a recombinant DNA molecule?


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.


State the importance of elution in this process.


What are the protruding and hanging stretches of DNA produced by these restriction enzymes called? Describe their role in the formation of rDNA.


How are DNA fragments visualised once they are separated by gel electrophoresis?


Hind II always cuts DNA molecules at a particular point called recognition sequence and it consists of ______.


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