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. |
Placing a foreign gene under the control of expression signals will lead to its ____________ |
| A. | Activation |
| B. | Expression |
| C. | Inactivation |
| D. | Knockout |
| Answer» C. Inactivation | |
| 2. |
Cloning vectors that can be used for recombinant protein production are called _____________ |
| A. | Expression vectors |
| B. | Hybrid vectors |
| C. | Hosts |
| D. | Advanced vectors |
| Answer» B. Hybrid vectors | |
| 3. |
What could be a possible reason for non-expression of a foreign gene in an E.coli host? |
| A. | Recognition of expression signals |
| B. | Non-recognition of expression signals |
| C. | Indefinite size |
| D. | Inefficient ligation |
| Answer» C. Indefinite size | |
| 4. |
The ‘TATA Box’ is present at _____ in animals and at _______ in E.coli. |
| A. | -25, -10 |
| B. | -10, -10 |
| C. | -10, -25 |
| D. | -25, -25 |
| Answer» B. -10, -10 | |
| 5. |
The ‘TATA Box’ in animals contains one more ______ as compared to that present in E.coli. |
| A. | Adenosine |
| B. | Cytosine |
| C. | Thymine |
| D. | Guanine |
| Answer» B. Cytosine | |
| 6. |
The ‘TTGACA Box’ signal is found only in ___________ |
| A. | Plants |
| B. | Animals |
| C. | Fungi |
| D. | E.coli |
| Answer» E. | |
| 7. |
The initiation codon of the gene is located ___________ of the ribosome binding site. |
| A. | Upstream |
| B. | Downstream |
| C. | Away |
| D. | Inside |
| Answer» C. Away | |
| 8. |
Ribosome binding site is recognized by __________ |
| A. | Polymerase |
| B. | Ribosome |
| C. | Nucleosome |
| D. | Chromosome |
| Answer» C. Nucleosome | |
| 9. |
A tem-loop structure in an E.coli cell is formed by __________ |
| A. | Gene |
| B. | Terminator |
| C. | Inducer |
| D. | Promoter |
| Answer» C. Inducer | |
| 10. |
The terminator _______ the transcription process. |
| A. | Decreases |
| B. | Increases |
| C. | Activates |
| D. | Ceases |
| Answer» E. | |
| 11. |
The promoter is recognized by ______________ |
| A. | RNA polymerase |
| B. | DNA polymerase |
| C. | Replicase |
| D. | Helicase |
| Answer» B. DNA polymerase | |
| 12. |
Which of the following process is initiated by the promoter? |
| A. | Translation |
| B. | Replication |
| C. | Apoptosis |
| D. | Transcription |
| Answer» E. | |
| 13. |
Which of the following is not an important signal for the E.coli genes? |
| A. | Promoter |
| B. | Terminator |
| C. | Inducer |
| D. | Ribosome binding site |
| Answer» D. Ribosome binding site | |
| 14. |
What are the signals, inside the host that surround the gene? |
| A. | Amino acids |
| B. | Nucleotides |
| C. | Proteins |
| D. | Bacterium |
| Answer» C. Proteins | |
| 15. |
If a foreign gene is simply ligated into a standard vector, it is likely that a recombinant protein will be produced. |
| A. | True |
| B. | False |
| Answer» C. | |