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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Significance of 'heat shock' method in bacterial transformation is to facilitate ______.

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प्रश्न

Significance of 'heat shock' method in bacterial transformation is to facilitate ______.

पर्याय

  • Binding of DNA to the cell wall

  • Uptake of DNA through membrane transport proteins

  • Uptake of DNA through transient pores in the bacterial cell wall

  • Expression of antibiotic resistance gene

MCQ
रिकाम्या जागा भरा
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उत्तर

Significance of 'heat shock' method in bacterial transformation is to facilitate Uptake of DNA through transient pores in the bacterial cell wall.

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पाठ 11: Biotechnology : Principles and Processes - MULTIPLE CHOICE QUESTIONS [पृष्ठ ७७]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
पाठ 11 Biotechnology : Principles and Processes
MULTIPLE CHOICE QUESTIONS | Q 12. | पृष्ठ ७७

संबंधित प्रश्‍न

Draw a labelled sketch of sparged-stirred-tank bioreactor. Write its application.


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


Can you recall meiosis and indicate at what stage recombinant DNA is made?


Explain briefly:

PCR


Explain briefly:

Chitinase


______ plays an important role in blood clotting.


Blood stains are found at the site of a murder. It DNA profiling technique is to be used for identifying the criminals, which of the following is ideal for use?


In addition to the Taq polymerase enzyme, which other thermostable DNA polymerases have been isolated to be used in PCR?


In PCR, primers are used for ______.


Rising of dough is due to ______.


Which of the following contributed in popularising the PCR (polymerase chain reactions) technique?


Which of the following should be chosen for best yield if one were to produce a recombinant protein in large amounts?


Do biomolecules (DNA, protein) exhibit biological activity in anhydrous conditions?


Identify and explain steps ‘A’, ‘B’ and ‘C’ in the PCR diagram given below.


Assertion (A): Synthetic oligonucleotide polymers are used during Annealing in a PCR.

Reason (R): The primers bind to the double stranded DNA at their complementary regions.


Bioreactors are the containment vehicles of any biotechnology-based production process. For large scale production and for economic reasons the final success of biotechnological process depends on the efficiency of the bioreactor.

Answer the following questions w.r.t. the given paragraph:

  1. List the operational guidelines that must be adhered to so as to achieve optimisation of the bioreactor system. Enlist any four.
  2. Mention the phase of the growth we refer to in the statement "Optimisation of growth and metabolic activity of the cells".
  3. Is the biological product formed in the bioreactor suitable for the intended use immediate? Give reason in support of your answer.

Identify the part of a bio-reactor which is used as a foam braker from the given figure.


Which of the following statements is incorrect?


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