MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A desirable change in the genotype of an organism is obtained by _______ |
| A. | m-RNA formation |
| B. | DNA replication |
| C. | protein synthesis |
| D. | rDNA technology |
| Answer» E. | |
| 2. |
Insect pest resistance Bt-cotton plant was developed using ________ |
| A. | transgenic technology |
| B. | somaclonal variation |
| C. | micropropagation |
| D. | somatic hybridization |
| Answer» B. somaclonal variation | |
| 3. |
Flavr savr variety of tomato is the improved variety developed through ________ |
| A. | hybridization between old varieties |
| B. | mutation variety |
| C. | incorporation of a transgene |
| D. | hybridization between a modern variety and a wild variety |
| Answer» D. hybridization between a modern variety and a wild variety | |
| 4. |
Natural genetic engineer is ________ |
| A. | <em>Pseudomonas putida </em> |
| B. | <em>Escherichia coli </em> |
| C. | <em>Agrobacterium tumefaciens </em> |
| D. | <em>Bacillus subtilis</em> |
| Answer» D. <em>Bacillus subtilis</em> | |
| 5. |
Strains of Bacillus thuringiensis are being used for designing ______ |
| A. | biomineralization |
| B. | biofertilizers |
| C. | biometallurgical techniques |
| D. | bioinsecticidal plants |
| Answer» E. | |
| 6. |
Transgenic plants carry desirable traits like _______ |
| A. | harmful genes |
| B. | herbicide resistance |
| C. | lactose intolerance |
| D. | complementary genes |
| Answer» C. lactose intolerance | |
| 7. |
Two bacteria found to be very useful in genetic engineering experiments are _______ |
| A. | <em>Nitrosomonas and Klebsiella</em> |
| B. | <em>Nitrobacter and Azotobacter</em> |
| C. | <em> Escherichia and Agrobacterium</em> |
| D. | <em> Rhizobium and Diplococcus </em> |
| Answer» D. <em> Rhizobium and Diplococcus </em> | |
| 8. |
The transgenic plant Flavr savr tomato carries an artificial gene for ______ |
| A. | delaying ripening process |
| B. | added flavours |
| C. | both delaying ripening process and added flavours |
| D. | insect resistance |
| Answer» D. insect resistance | |
| 9. |
The transgenic tomato variety with an improved shelf life is ______ |
| A. | Lyco 100 |
| B. | PHB tomato |
| C. | Bt tomato |
| D. | Flavr savr |
| Answer» E. | |
| 10. |
Delay in the ripening of tomato is due to_____ |
| A. | virulent gene |
| B. | antisense PG |
| C. | antibiotic resistance gene |
| D. | mutation |
| Answer» C. antibiotic resistance gene | |
| 11. |
Which agriculturally important bacterial gene is isolated from Rhizobium? |
| A. | Nif gene |
| B. | E-gene |
| C. | F-gene |
| D. | T-DNA |
| Answer» B. E-gene | |