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प्रश्न
An antibiotic resistance gene in a vector usually helps in the selection of ______.
पर्याय
Competent bacterial cells
Transformed bacterial cells
Recombinant bacterial cells
None of the above
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उत्तर
An antibiotic resistance gene in a vector usually helps in the selection of transformed bacterial cells.
APPEARS IN
संबंधित प्रश्न
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?
Describe briefly the following:
Bioreactors
State the importance of using a bioreactor.
Answer the following question:
Describe the formation of recombinant DNA by the action of EcoRI.
In a pathological lab, a series of steps were undertaken for finding the gene of interest. Describe the steps, or make a flow chart showing the process of amplification of this gene of interest.
______ plays an important role in blood clotting.
DNA fragments generated by the restriction endonuclease in a chemical reaction can be separated by ______.
PCR and restriction fragment length polymorphism are the methods for ______.
PCR proceeds mthree distinct steps governed by temperature, they are in order of ______.
In addition to the Taq polymerase enzyme, which other thermostable DNA polymerases have been isolated to be used in PCR?
During the purification process for recombinant DNA technology, the addition of chilled ethanol precipitates out ______.
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?
While doing a PCR, ‘denaturation’ step is missed. What will be its effect on the process?
Do biomolecules (DNA, protein) exhibit biological activity in anhydrous conditions?
Read the paragraph given below and answer and questions that follow:
| Enzyme Taq polymerase, is extracted from a eubacterial microorganism Thermus aquaticus from Yellowstone National Park in Montana, USA and isolated by Chien et al. (1976). Taq polymerase successfully replaced the DNA polymerase from E.coli that was being used in PCR earlier and this shift revolutionised the PCR technique. |
- Taq polymerase after its discovery replaced E.coli DNA polymerase in PCR technique. Explain giving reasons why was the need felt for the change?
- What is a primer and its importance in PCR?
- Write the importance of PCR as a diagnostic tool.
Write the scientific name of the source organism of the thermostable DNA polymerase used in PCR.
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:
- List the operational guidelines that must be adhered to so as to achieve optimisation of the bioreactor system. Enlist any four.
- Mention the phase of the growth we refer to in the statement "Optimisation of growth and metabolic activity of the cells".
- Is the biological product formed in the bioreactor suitable for the intended use immediate? Give reason in support of your answer.
