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प्रश्न
Retroviruses have no DNA. However, the DNA of the infected host cell does possess viral DNA. How is it possible?
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उत्तर
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संबंधित प्रश्न
Name the genes responsible for making Bt cotton plants resistant to bollworm attack. How do such plants attain resistance against bollworm attacks? Explain.
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Polymerase chain reaction is most useful in ______.
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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.
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| 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 |
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- A highly active promoter.
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