| 1. | Pomato is somatic (a) Poppy and Potato (b) Potato and tomato (c) Poppy and tamarind (d) Poppy and Tomato | Answer: (b) |
| 2. | Preserving germplasm in frozen state is (a) Cryopreservation (b) Cold storage (c) In situ preservation (d) Vernalisation | Answer: (a) |
| 3. | Protein helping in opening of DNA double helix in front of replication fork is (a) DNA gyrase (b) DNA Polymerase I (c) DNA ligase (d) DNA topoisomerase | Answer: (a) |
| 4. | Pyrimidine base present in RNA in place of thymine of DNA is (a) Uracil (b) Adenine (c) Cytosine (d) Guanine | Answer: (a) |
| 5. | Restriction endonuclease is employed for cutting (a) A single stranded DNA (b) Double stranded DNA (c) RNA fragment (d) mRNA | Answer: (b) |
| 6. | Restriction endonucleases are (a) Used in genetic engineering for uniting two DNA molecules (b) Used for in vitro DNA synthesis (c) Present in mammalian cells for degeneration of DNA of dead cells (d) Synthesised by bacteria for their defence | Answer: (d) |
| 7. | Restriction enzymes are used in genetic engineering because they (a) Can join DNA fragment (b) Cut DNA at specific base sequence (c) Cut DNA at variable sites (d) Are proteolytic enzymes which degrade harmful proteins | Answer: (b) |
| 8. | Reverse transcriptase is (a) RNA dependent RNA polymerase (b) DNA dependent RNA polymerase (c) DNA dependent DNA polymerase (d) RNA dependent DNA polymerase | Answer: (d) |
| 9. | RNA contains (a) Hexose (b) Ribose (c) Fructose (d) Glucose | Answer: (b) |
| 10. | RNA does not possess (a) Uracil (b) Thymine (c) Adenine (d) Cytosine | Answer: (b) |
------------------------------------------ Best Wishes: Dr.Ehab Aboueladab, Tel:01007834123 Email:ehab10f@gmail.com,ehababoueladab@yahoo.com ------------------------------------------
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