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प्रश्न
Do biomolecules (DNA, protein) exhibit biological activity in anhydrous conditions?
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उत्तर
No, biomolecules like DNA and protein cannot exhibit biological activity in anhydrous conditions. Hence, life is unsustainable without water.
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संबंधित प्रश्न
Name two commonly used bioreactors.
Suggest and describe a technique to obtain multiple copies of a gene of interest in vitro.
Explain briefly:
PCR
Prepare a flow chart in formation of recombinant DNA by the action of restriction endonuclease enzyme EcoRI.
Describe the process of amplification of the “gene of interest” using the PCR technique.
DNA fragments generated by the restriction endonuclease in a chemical reaction can be separated by ______.
In PCR, primers are used for ______.
During the purification process for recombinant DNA technology, the addition of chilled ethanol precipitates out ______.
Rising of dough is due to ______.
Which of the following contributed in popularising the PCR (polymerase chain reactions) technique?
Which of the following steps are catalysed by Taq DNA polymerase in a PCR reaction?
How is copy number of the plasmid vector related to yield of recombinant protein?
While doing a PCR, ‘denaturation’ step is missed. What will be its effect on the process?
Identify and explain steps ‘A’, ‘B’ and ‘C’ in the PCR diagram given below.
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 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.
Given below are two statements:
Statement I: The DNA fragments extracted from gel electrophoresis can be used in construction of recombinant DNA.
Statement II: Smaller size DNA fragments are observed near anode while larger fragments are found near the wells in an agarose gel.
In the light of the above statements, choose the most appropriate answer from the options given below:
Main steps in the formation of Recombinant DNA are given below. Arrange these steps in a correct sequence.
- Insertion of recombinant DNA into the host cell.
- Cutting of DNA at specific location by restriction enzyme.
- Isolation of desired DNA fragment.
- Amplification of gene of interest using PCR.
Choose the correct answer from the options given below:
Upon exposure to UV radiation, DNA stained with ethidium bromide will show ______.
