MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The enzyme aminoacyl-tRNA synthetase is responsible for linking ____________________________ |
| A. | amino acid to tRNA |
| B. | amino acid to mRNA |
| C. | carboxyl to tRNA |
| D. | carboxyl to mRNA |
| Answer» B. amino acid to mRNA | |
| 2. |
The “wobble hypothesis” was proposed by ______________________ |
| A. | James Watson |
| B. | Barbara McClintock |
| C. | Thomas Morgan |
| D. | Francis Crick |
| Answer» E. | |
| 3. |
The part of tRNA that interacts with the codon of mRNA is termed as __________ |
| A. | Anticodon |
| B. | T-arm |
| C. | D-arm |
| D. | V-arm |
| Answer» B. T-arm | |
| 4. |
All mature tRNAs have the sequence CCA at their 3’ end. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
The length of tRNA molecules is ________________ nucleotides. |
| A. | 20-30 |
| B. | 50-70 |
| C. | 73-93 |
| D. | 83-93 |
| Answer» D. 83-93 | |
| 6. |
In the below figure of a transfer RNA, which is the site of attachment for an amino acid? |
| A. | a |
| B. | b |
| C. | c |
| D. | d |
| Answer» B. b | |
| 7. |
Which region of the tRNA molecule is highly variable? |
| A. | a |
| B. | b |
| C. | c |
| D. | d |
| Answer» C. c | |
| 8. |
When was the first base sequence of a transfer RNA reported? |
| A. | 1935 |
| B. | 1945 |
| C. | 1955 |
| D. | 1965 |
| Answer» E. | |
| 9. |
Transfer RNA linked to an amino acid is called _____________ |
| A. | a-tRNA |
| B. | amino-tRNA |
| C. | tRNA |
| D. | aa-tRNA |
| Answer» E. | |
| 10. |
Transfer RNAs decode the information present in __________________ |
| A. | mRNA |
| B. | siRNA |
| C. | miRNA |
| D. | rRNA |
| Answer» B. siRNA | |
| 11. |
Translation is the process of _____________________ |
| A. | mRNA synthesis |
| B. | tRNA synthesis |
| C. | protein synthesis |
| D. | nucleic acid synthesis |
| Answer» D. nucleic acid synthesis | |