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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
Distinguish between plasmid DNA and chromosomal DNA.
Distinguish between RNA and DNA.
Give an account of the Blue-White Method of selection of recombinants.
The bacterium which causes a plant disease called crown gall is _______________.
Explain the properties of a good or ideal cloning vector for rDNA technology.
Give the steps in PCR or polymerase chain reaction with suitable diagrams.
Enlist and write in brief about the different biological tools required in rDNA technology.
What is plasmid?
Vectors are ____________ molecules that carry a foreign gene and replicate inside the host cell.
For which of the following reason Agrobacterium tumefaciens is most widely used for gene transfer in plants?
Identify the CORRECT sequence of steps in PCR.
Which of the following DNA sequence is recognised and cut by EcoR I?
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.
From which of the following organisms the enzyme Taq polymerase used in PCR technique is obtained?
Which of the following is NOT involved in genetic engineering technique?
i. Combining genes from two organisms
ii. Gene cloning
iii. Transfer of lipid molecules
iv. Transfer of genes to new organisms
v. Repairing or replacing the defective genes by healthy genes
vi. Artificial synthesis of new gene
The vector Baculovirus is used for gene transfer in ____________.
Which one is a true statement regarding DNA polymerase used in PCR?
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?
Identify the desirable characteristics for a plasmid used in rDNA technology from the following.
- Ability to multiply and express outside the host in a bioreactor.
- A highly active promoter.
- A site at which replication can be initiated.
- One or more identifiable marker genes.
- One or more unique restriction sites.
