Match List-I with List-II :
| List - I | List - II | ||
|---|---|---|---|
| (a) | Gene gun | (i) | Replacement of a faulty gene by a normal healthy gene |
| (b) | Gene therapy | (ii) | Used for transfer of gene |
| (c) | Gene cloning | (iii) | Total DNA in the cells of an organism |
| (d) | Genome | (iv) | To obtain identical copies of a particular DNA molecule |
Choose the correct answer from the options given below:
Pathogenic bacteria gain resistance to antibiotics due to changes in their :
Which of the following methods is not commonly used for introducing foreign DNA into the plant cell?
Refer to the following statements for agarose-gel electrophoresis:
(a) Agarose is a natural polymer obtained from sea-weed.
(b) The separation of DNA molecules in agarose-gel electrophoresis depends on the size of DNA.
(c) The DNA migrates from negatively-charged electrode to the positively-charged electrode
(d) The DNA migrates from positively-charged electrode to the negatively-charged electrode.
Choose the most appropriate answer from the options given below :
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