

MCQOPTIONS
Saved Bookmarks
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
1. |
Which factors lead to disassociation of the ribosomal subunits? |
A. | RRF and Ef-G |
B. | IF1 and IF2 |
C. | Rf1 and RRF |
D. | IF-1 and IF-3 |
Answer» E. | |
2. |
Which factor or factors lead to the ultimate disassembly of the ribosomal complex? |
A. | RF1 and RF3 |
B. | RF3 and RRF |
C. | RRF and EF-G |
D. | RF2 and EF-G |
Answer» D. RF2 and EF-G | |
3. |
Binding of RF3.GTP to the ribosome helps in release of the ____________ |
A. | Peptide |
B. | Release factor 1 |
C. | tRNA |
D. | Ribosome |
Answer» C. tRNA | |
4. |
Which of these factors can recognize the UAA stop codon? |
A. | RF1 |
B. | RF3 |
C. | RRF |
D. | Ef-G |
Answer» B. RF3 | |
5. |
BINDING_OF_RF3.GTP_TO_THE_RIBOSOME_HELPS_IN_RELEASE_OF_THE_____________?$ |
A. | Peptide |
B. | Release factor 1 |
C. | tRNA |
D. | Ribosome |
Answer» C. tRNA | |
6. |
WHICH_OF_THESE_FACTORS_CAN_RECOGNIZE_THE_UAA_STOP_CODON??$ |
A. | RF1 |
B. | RF3 |
C. | RRF |
D. | Ef-G |
Answer» B. RF3 | |
7. |
Which factors lead to disassociation of the ribosomal subunits?$ |
A. | RRF and Ef-G |
B. | IF1 and IF2 |
C. | Rf1 and RRF |
D. | IF-1 and IF-3 |
Answer» E. | |
8. |
Which factor or factors lead to the ultimate disassembly of the ribosomal complex?$ |
A. | RF1 and RF3 |
B. | RF3 and RRF |
C. | RRF and EF-G |
D. | RF2 and EF-G |
Answer» D. RF2 and EF-G | |
9. |
How many factors play a role in termination of translation? |
A. | 1 |
B. | 3 |
C. | 5 |
D. | 7 |
Answer» D. 7 | |
10. |
If a peptide is 160 amino acids long, How many GTP and ATP molecules does it use for elongation? |
A. | 318 GTP + 160 ATP |
B. | 478 GTP + 160 ATP |
C. | 320 GTP+ 320 ATP |
D. | 478 GTP+ 320 ATP |
Answer» B. 478 GTP + 160 ATP | |
11. |
According to the hybrid state model, if we consider the hybrid state of a tRNA such that its base is bound to the P site of 30S subunit, where will its head be bound? |
A. | A site of 50S |
B. | P site of 50S |
C. | E site of 50S |
D. | Unbound |
Answer» D. Unbound | |
12. |
What is the rate of translation in prokaryotes under adequate conditions? |
A. | 10 amino acid per second |
B. | 20 amino acid per second |
C. | 30 amino acid per second |
D. | 40 amino acid per second |
Answer» C. 30 amino acid per second | |
13. |
The E site of the ribosome has a high affinity for___________ |
A. | Peptide bound tRNA |
B. | Ester linked tRNA |
C. | Acylated tRNA |
D. | Deacylated tRNA |
Answer» E. | |
14. |
After the Ef-G cycle the A site_________ |
A. | Houses peptide bound tRNA |
B. | Amino acid bound tRNA |
C. | Empty |
D. | Uncharged trNA |
Answer» D. Uncharged trNA | |
15. |
EF-Tu GTP complex is ____________ |
A. | Very unstable |
B. | Unstable |
C. | Stable |
D. | Very stable |
Answer» E. | |
16. |
Which of the elongation factor binds to amino acyl tRNA? |
A. | Ef-Tu |
B. | Ef-Ts |
C. | Ef-G |
D. | GDP |
Answer» B. Ef-Ts | |