| 1. In recombinant DNA technology a plasmid vector is cleaved by (A) Modified DNA ligase (B) A heated alkaline solution (C) The same enzyme that cleave the donor DNA (D) The different enzyme other than that cleave the donor DNA | Answer: (C) |
| 2. The most common plasmid vector used in genetic engineering is (A) PBR 328 (B) PBR 322 (C) PBR 325 (D) PBR 330 | Answer: (B) |
| 3. ‘Nif gene’ for nitrogen fixation is cereal crops like wheat, jowar etc. is introduced by cloning (A) Rhizobium meliloti (B) Bacillus thuringiensis (C) Rhizopus (D) Rhizophora | Answer: (A) |
| 4. Eco RI is an (A) Ligase (B) Polymerase (C) Restriction enzyme (D) Gyrase | Answer: (C) |
| 5. The transgenic plant flavr savr tomato carries an artificial gene for (A) Delay ripening process (B) Longer shell life (C) Added flavours (D) All of these | Answer: (D) |
------------------------------------------ Best Wishes: Dr.Ehab Aboueladab, Tel:01007834123 Email:ehab10f@gmail.com,ehababoueladab@yahoo.com ------------------------------------------
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