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प्रश्न
Explain the following terms with respect to rDNA technology
- passanger DNA
- Chimeric DNA
- Transformed cell
- restriction site
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उत्तर
- Passenger DNA: A DNA fragment containing desired gene that is isolated and selected for cloning is called foreign DNA or passenger DNA.
- Chimeric DNA: The combination of vector DNA and foreign DNA is called Recombinant DNA or Chimeric DNA.
- Transformed cell: The host/ competent cell which has taken up rDNA is called transformed cell.
- Restriction site: The particular sequence of nucleotides on DNA where a restriction enzyme cuts the two strands of DNA is called recognition or restriction site.
संबंधित प्रश्न
cDNA means ______.
Explain the steps in process of rDNA technology with suitable diagrams.
Study the following statements regarding cDNA library and select the correct option.
- Study the following statements regarding cDNA library and select the correct option.
- DNA is produced from isolated rRNA by reverse transcription. The DNA so made is called complementary DNA (cDNA).
Which of the following technique is used for the separation of DNA fragments of different lengths?
A ______ refers to the competent host cell that has taken up chimeric DNA.
Identify the techniques that can be used to transfer foreign DNA directly into the cell or protoplast without the use of plasmids.
i. Biolistic method
ii. Ultrasonification
iii. Shot gun
iv. Lipofection
v. Microinjection
vi. Electroporation
During gene cloning, the enzyme ______ is used to join the gene of interest with the plasmid vector.
Identify the process by which competent host can take up chimeric DNA.
Identify the process in Column I with the term in Column II and select the correct option.
| Column I | Column II |
| A. Amplification of gene of interest | I. Downstream processing |
| B. Large-scale production of plants in a short duration. | II. Polymerase chain reaction |
| C. Separation and purification of the desired product | III. Transformation |
| D. Insertion of rDNA into the host | IV. Micropropagation |
Define genomic library.
