MCQOPTIONS
Saved Bookmarks
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. |
Log phase is also known as _________ |
| A. | lag phase |
| B. | exponential phase |
| C. | stationary phase |
| D. | decline phase |
| Answer» C. stationary phase | |
| 2. |
Downstream processing also involves _________ |
| A. | separation and purification |
| B. | mixing and hybridization |
| C. | separation and hybridization |
| D. | mixing and purification |
| Answer» B. mixing and hybridization | |
| 3. |
What facilitates the even mixing of ingredients within a bioreactor? |
| A. | Pipe |
| B. | Motor |
| C. | Stirrer |
| D. | Broth |
| Answer» D. Broth | |
| 4. |
How many stages does a bacterial growth curve have? |
| A. | 5 |
| B. | 1 |
| C. | 4 |
| D. | 3 |
| Answer» D. 3 | |
| 5. |
________ growth conditions are required to obtain the maximum yield. |
| A. | Low |
| B. | High |
| C. | Equal |
| D. | Optimum |
| Answer» E. | |
| 6. |
_______ culturing method produces higher biomass and higher yield of the desired product. |
| A. | Batch |
| B. | Continuous |
| C. | Mixed |
| D. | Hybrid |
| Answer» C. Mixed | |
| 7. |
Which culture system is used to obtain cells in the exponential phase? |
| A. | Single |
| B. | Monochronous |
| C. | Continuous |
| D. | Batch |
| Answer» D. Batch | |
| 8. |
If any protein-encoding gene is expressed in a heterologous host, it is called a _______ protein. |
| A. | pure |
| B. | mixed |
| C. | recombinant |
| D. | similar |
| Answer» D. similar | |
| 9. |
Recombinant DNA technology is associated with _______ |
| A. | Christian Gram |
| B. | C. Darwin |
| C. | Robert Koch |
| D. | Herbert Boyer |
| Answer» E. | |
| 10. |
The common bacteria used in genetic engineering is _____ |
| A. | <em>S.typhi</em> |
| B. | <em>E.coli</em> |
| C. | <em>Rhizobium</em> |
| D. | <em>S.aureus</em> |
| Answer» C. <em>Rhizobium</em> | |
| 11. |
The antibiotic resistance gene can be used as ________ marker for selecting transformants. |
| A. | selectable |
| B. | differential |
| C. | similar |
| D. | radioactive |
| Answer» B. differential | |