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Biotechnology : Principles And Processes

Question
CBSEENBI12003336
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Plasmid vector in DNA recombinant technology means

  • a virus that transfers gene to bacteria

  • extra-chromosomal autonomously replicating circular DNA

  • sticky end of DNA

  • any fragment of DNA carrying desirable gene.

Solution

B.

extra-chromosomal autonomously replicating circular DNA

A plasmid is a genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplasm of a bacterium or protozoan. Plasmids are much used in the laboratory manipulation of genes.

Some More Questions From Biotechnology : Principles and Processes Chapter

Define T-DNA.

Name a technique by which DNA fragments can be separated.

What are the different tools in Recombinant DNA technology?

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.

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