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प्रश्न
Define biotechnology? Which are the basic principles and process of biotechnology?
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उत्तर
Definition:
Biotechnology refers to the development and utilization of biological forms, products or processes for obtaining maximum benefits to man and other forms of life.
- Biotechnology is based on the principles of chemical engineering, genetic engineering and adequate maintenance of sterile conditions.
- Following are the processes used in biotechnology:
- Repairing of the defective genes or replacing of defective genes by healthy genes or normal genes;
- Artificially synthesizing of a totally new gene
संबंधित प्रश्न
Why are bio-fertilizers preferred over chemical fertilizers?
Give a reason why :
Proteases are added during the isolation of DNA for genetic engineering.
Alu-I is obtained from which organism?
The following identifies the major features of technology that differentiate modem biotechnology from classical biotechnology.
i. Capability of science to change the genetic material for getting new specific products through rDNA technology, polymerase chain reaction (PCR), microarrays, cell culture and fusion, and bioprocessing.
ii. Ownership of technology and its sociopolitical impact.
iii. Modem biotechnology makes use of only fermentation technology.
iv. Classical biotechnology relies only on principles of plant and animal tissue culture.
In which of the following techniques, charged molecules (DNA, RNA and Proteins) are separated by applying the electric field?
Identify the CORRECT order of steps in Polymerase Chain Reaction (PCR).
Match the column I (PCR steps) and Column II (Temperature). Select the correct option.
| Column I (PCR steps) | Column II (Temperature) | ||
| i. | Polymerization | P. | 40 - 60°C |
| ii. | Denaturation | Q. | 70 - 75°C |
| iii. | Primer annealing | R. | 90 - 98°C |
| S. | 28 - 37°C |
What would happen when one grows a recombinant bacterium in a bioreactor but forget to add antibiotic to the medium in which the recombinant is growing?
pBR322, used very frequently in cloning experiments as a vector in E. coli is ______.
How many sets of primers are required in each cycle of PCR?
