MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Vector Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is responsible for the mRNA translation effectively? |
| A. | tRibosome binding site |
| B. | tIPTG |
| C. | tUbiquitin |
| D. | tAmpicillin |
| Answer» B. tIPTG | |
| 2. |
P-terminus of the fusion protein is fused with a short peptide. |
| A. | tTrue |
| B. | tFalse |
| Answer» C. | |
| 3. |
Which type of protein is produced with cassette vectors? |
| A. | tPlant protein |
| B. | tMammalian protein |
| C. | tFusion protein |
| D. | tHybrid protein |
| Answer» D. tHybrid protein | |
| 4. |
Insertion of the foreign gene into the expression vector s cassette fuses ____ reading frames. |
| A. | t1 |
| B. | t2 |
| C. | t3 |
| D. | t4 |
| Answer» C. t3 | |
| 5. |
The cassette in an expression vector comprises of ribosome binding site and ____________ |
| A. | tPromoter |
| B. | tTerminator |
| C. | tRepressor |
| D. | tInducer |
| Answer» C. tRepressor | |
| 6. |
How can the synthesis of T7 RNA polymerase can be switched on in a culture? |
| A. | tIPTG addition |
| B. | tIPTG removal |
| C. | tAmpicillin addition |
| D. | tAmpicillin removal |
| Answer» B. tIPTG removal | |
| 7. |
Which of the following is present in the lysogenic special strain of E.coli? |
| A. | tTrp promoter |
| B. | tLac promoter |
| C. | tAmpicillin |
| D. | tIPTG |
| Answer» C. tAmpicillin | |
| 8. |
Gene expressed downstream of T7 promoter will be expressed at _____________ |
| A. | tLow level |
| B. | tHigh level |
| C. | tModerate level |
| D. | tIntermittently |
| Answer» C. tModerate level | |
| 9. |
The T7 promoter is specific for the __________ |
| A. | tMutant strains |
| B. | tBacteriophage |
| C. | tRNA polymerase |
| D. | tDNA polymerase |
| Answer» D. tDNA polymerase | |
| 10. |
At higher temperature the cI protein is __________ |
| A. | tInactivated |
| B. | tIncreased |
| C. | tDecreased |
| D. | tModerated |
| Answer» B. tIncreased | |
| 11. |
Below what temperature can the cI protein repress the lambda promoter? |
| A. | t10 degrees |
| B. | t20 degrees |
| C. | t30 degrees |
| D. | t40 degrees |
| Answer» D. t40 degrees | |
| 12. |
Expression vectors that carry the lambda P L promoter are used with ________ E.coli strain. |
| A. | tDouble |
| B. | tHybrid |
| C. | tMutant |
| D. | tWild-type |
| Answer» D. tWild-type | |
| 13. |
The lambda promoter is repressed by which of the following gene? |
| A. | tT gene |
| B. | tcI gene |
| C. | tAmp gene |
| D. | tTrp gene |
| Answer» C. tAmp gene | |
| 14. |
Lambda vector subverts which important enzyme of E.coli? |
| A. | tDNA polymerase |
| B. | tHelicase |
| C. | tRNA polymerase |
| D. | tNuclease |
| Answer» D. tNuclease | |
| 15. |
The lambda P L promoter is a weak promoter. |
| A. | tTrue |
| B. | tFalse |
| Answer» C. | |