Advertisements
Advertisements
प्रश्न
While doing a PCR, ‘denaturation’ step is missed. What will be its effect on the process?
Advertisements
उत्तर
If denaturation of double-stranded DNA does not take place, then primers will not be able to anneal to the template, no extension will take place, hence no amplification will occur.
APPEARS IN
संबंधित प्रश्न
Name two commonly used bioreactors.
Suggest and describe a technique to obtain multiple copies of a gene of interest in vitro.
Draw a labelled sketch of sparged-stirred-tank bioreactor. Write its application.
Can you list 10 recombinant proteins which are used in medical practice? Find out where they are used as therapeutics (use the internet).
Besides better aeration and mixing properties, what other advantages do stirred tank bioreactors have over shake flasks?
Describe briefly the following:
Bioreactors
Explain briefly:
PCR
Explain briefly:
Chitinase
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?
______ plays an important role in blood clotting.
A single strand of nucleic acid tagged with a radioactive molecule is called ______.
The first step in recombinant DNA technology is
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 ______.
Rising of dough is due to ______.
An antibiotic resistance gene in a vector usually helps in the selection of ______.
How is copy number of the plasmid vector related to yield of recombinant protein?
Do biomolecules (DNA, protein) exhibit biological activity in anhydrous conditions?
Illustrate the design of a bioreactor. Highlight the difference between a flask in your laboratory and a bioreactor which allows cells to grow in a continuous culture system.
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.
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.
State the advantage of using Thermostable DNA polymerase.
Identify the part of a bio-reactor which is used as a foam braker from the given figure.

