MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Biotechnology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In case of incomplete dominance, the phenotypic ratio of a monohybrid cross will be |
| A. | 1:2:1 |
| B. | 3:1:1 |
| C. | 1:3:1 |
| D. | 1:1:2 |
| Answer» B. 3:1:1 | |
| 2. |
In the meiotic cell divison in daughter cells are produced by two successive division in which |
| A. | first division is equational, second is reductional |
| B. | first division is reductional and second is equational |
| C. | both divisions are reductional |
| D. | both divisions are equational |
| Answer» B. first division is reductional and second is equational | |
| 3. |
What is the approximate size (in kb) of the melon mitochondrial genome? |
| A. | 600 kilobase |
| B. | 1200 kilobase |
| C. | 2400 kilobase |
| D. | 3000 kilobase |
| Answer» D. 3000 kilobase | |
| 4. |
The shortest of mitotic phases is the |
| A. | telophase |
| B. | interphase |
| C. | metaphase |
| D. | anaphase |
| Answer» E. | |
| 5. |
A plasmid used to introduce BT toxin into a plant cell |
| A. | carries an antibiotic resistance gene that makes the plant resistant to antibiotics |
| B. | causes the plant to produce opines |
| C. | is toxic for the plant cell |
| D. | carries a bacterial gene with a plant promoter |
| Answer» E. | |
| 6. |
The homologous chromosomes follow the process of synopsis in the |
| A. | leptotene |
| B. | zygotene |
| C. | pachytene |
| D. | diplotene |
| Answer» C. pachytene | |
| 7. |
When an organism has a life cycle with alternation of generations, the haploid generation is the |
| A. | zygote |
| B. | gametophyte |
| C. | gamete |
| D. | sporophyte |
| Answer» C. gamete | |
| 8. |
When do kinetochore microtubules pull chromosomes towards opposite spindle poles? |
| A. | In anaphase A |
| B. | In anaphase B |
| C. | In metaphase |
| D. | In telophase |
| Answer» B. In anaphase B | |
| 9. |
When F1 plants are crossed with homozygous recessive plants, it is known as |
| A. | test cross |
| B. | recessive cross |
| C. | criss-cross |
| D. | para-cross |
| Answer» B. recessive cross | |
| 10. |
During meiosis crossing over takes place at |
| A. | zygotene stage |
| B. | diplotene stage |
| C. | diakinesis stage |
| D. | pachytene stage |
| Answer» E. | |
| 11. |
Which of the following transposable elements are not found in plants? |
| A. | Ac |
| B. | Tam3 |
| C. | L1 |
| D. | All are found |
| Answer» D. All are found | |