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प्रश्न
Rising of dough is due to ______.
पर्याय
Multiplication of yeast
Production of CO2
Emulsification
Hydrolysis of wheat flour starch into sugars
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उत्तर
Rising of dough is due to production of CO2.
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संबंधित प्रश्न
Name two commonly used bioreactors.
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?
Explain briefly:
Chitinase
Answer the following question:
Describe the formation of recombinant DNA by the action of EcoRI.
Describe the process of amplification of the “gene of interest” using the PCR technique.
Which of the following term used for defining a viral genome incorporated into host DNA?
DNA fragments generated by the restriction endonuclease in a chemical reaction can be separated by ______.
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?
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 following paragraph and answer the questions that follow:
| Biotechnology revolves around the "gene of interest", with an objective to open various avenues for human welfare in health, medicine, pharma, agriculture etc. using different techniques, tools and processes. One of the breakthroughs of biotechnology in medicine is the gene therapy. |
- Name the human disease for which the gene therapy was used for the first time.
- Explain the steps of gene therapy carried to cure the disease using the lymphocytes of the patient. Why is this therapy not a permanent cure of the disease?
- Write the possible permanent cure of the disease by the gene therapy that is in progress.
Write the scientific name of the source organism of the thermostable DNA polymerase used in PCR.
State the advantage of using Thermostable DNA polymerase.
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.
