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Biotechnology : Principles And Processes

Question
CBSEENBI12047299
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The usual source of restriction endonucleases used in gene cloning is from

  • fungi

  • bacteria

  • plants

  • viruses

Solution

B.

bacteria

Restriction endonucleases. represent a class of nucleases originally extracted from the bacterium E. coli. Restriction endonucleases can cleave the DNA at specific sites.

Some More Questions From Biotechnology : Principles and Processes Chapter

Give the full form of PCR. Who developed it ?

What is the source of DNA polymerase i.e., Taq polymerase ?

Define “melting of target DNA”.

What would be the molar concentration of human DNA in a human cell ? Consult your teacher.

Do eukaryotic cells have restriction endonucleases ? Justify your answer.

From what you have learnt, can you tell whether enzymes are bigger or DNA is bigger in molecular size. How did you know ?

Expand EFB.

What are two core techniques that enabled birth of biotechnology ?

What is genetic engineering? Explain briefly the distinct steps common to all genetic engineering technology.
Or
With the help of diagrams show the different steps in the formation of recombinant DNA by action of restriction endonuclease.

List three important features necessary for preparing genetically modified organism.

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