MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Protein Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is a uracil derivative nucleotide? |
| A. | 3-methyl cytidine |
| B. | Lysidine |
| C. | Inosine |
| D. | Pseudouridine |
| Answer» E. | |
| 2. |
Which among the following sequence is present at the 3’ terminal of all tRNA? |
| A. | CCC |
| B. | CAC |
| C. | ACC |
| D. | CCA |
| Answer» E. | |
| 3. |
Wobble pairing occurs in which of the following positions? |
| A. | All positions |
| B. | First position |
| C. | Second position |
| D. | Third position |
| Answer» E. | |
| 4. |
Who proposed the wobble hypothesis? |
| A. | Louis Pasteur |
| B. | Gregor Mendel |
| C. | Francis Collins |
| D. | Francis Crick |
| Answer» E. | |
| 5. |
In the protein synthesis, which of the following interaction results in attachment of correct amino acid? |
| A. | Amino acid – tRNA interaction |
| B. | Amino acid – anticodon interaction |
| C. | Amino acid – codon interaction |
| D. | Codon – anticodon interaction |
| Answer» E. | |
| 6. |
Which of the following amino acid is known as the 21st amino acid? |
| A. | Pseudouridine |
| B. | Dihydrouridine |
| C. | Lysidine |
| D. | Selenocysteine |
| Answer» E. | |
| 7. |
Proteins are made by incorporating standard amino acids. How many standard amino acids are there in nature? |
| A. | 19 |
| B. | 22 |
| C. | 21 |
| D. | 20 |
| Answer» E. | |
| 8. |
Which of the following enzymes attach amino acids to tRNA? |
| A. | Amino acyl-tRNA reductase |
| B. | Amino acyl-tRNA synthase |
| C. | Amino acyl-tRNA ligase |
| D. | Amino acyl-tRNA synthetase |
| Answer» E. | |
| 9. |
Which of the following shape is assumed by the tertiary structure of tRNA? |
| A. | O shaped |
| B. | I shaped |
| C. | T shaped |
| D. | L shaped |
| Answer» E. | |
| 10. |
Where in the structure of tRNA, occurs a site of greatest variability? |
| A. | Anticodon loop |
| B. | D arm |
| C. | Tψ Cloop |
| D. | Variable arm |
| Answer» E. | |
| 11. |
ψ is the symbol of which amino acid? |
| A. | Psuedocytosine |
| B. | Pseudoguanidine |
| C. | Pseudoadenine |
| D. | Pseudouridine |
| Answer» E. | |
| 12. |
The amino acid carried by the tRNA is covalently attached to its 5’ terminal end? |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Almost all known tRNA can be schematically arranged in which of the following secondary structures? |
| A. | Planar |
| B. | Beta-sheet |
| C. | Helical |
| D. | Cloverleaf |
| Answer» E. | |
| 14. |
Which of the following is also known as the “adaptor” molecule? |
| A. | hnRNA |
| B. | rRNA |
| C. | mRNA |
| D. | tRNA |
| Answer» E. | |