MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following are non-sense codons? |
| A. | AUG |
| B. | GUG |
| C. | UAA |
| D. | UCU |
| Answer» D. UCU | |
| 2. |
The following code codes for which of the amino acid respectively? AUG and GUG |
| A. | Phenylalanine, tyrosine |
| B. | Methionine, valine |
| C. | Methionine, alanine |
| D. | Lysine, valine |
| Answer» C. Methionine, alanine | |
| 3. |
Rho factor is a dimeric protein factor. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
WHICH OF THE FOLLOWING ARE NON-SENSE CODONS? |
| A. | AUG |
| B. | GUG |
| C. | UAA |
| D. | UCU |
| Answer» D. UCU | |
| 5. |
THE_FOLLOWING_CODE_CODES_FOR_WHICH_OF_THE_AMINO_ACID_RESPECTIVELY??$ |
| A. | |
| B. | Phenylalanine,tyrosine |
| C. | Methionine,valine |
| Answer» C. Methionine,valine | |
| 6. |
Rho factor is a dimeric protein factor? |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which of the following is responsible for the initiation of RNA polymerase activity? |
| A. | initiation site |
| B. | promoter region |
| C. | sigma factor |
| D. | rho factor |
| Answer» D. rho factor | |
| 8. |
The synthesis of polynucleotide chain of mRNA is catalyzed by the enzyme _____________ |
| A. | RNA helicase |
| B. | RNA polymerase |
| C. | DNA polymerase |
| D. | DNA helicase |
| Answer» C. DNA polymerase | |
| 9. |
Which of the following RNA constitutes 90 percent of the total cellular RNA? |
| A. | rRNA |
| B. | tRNA |
| C. | mRNA |
| D. | hnRNA |
| Answer» B. tRNA | |
| 10. |
Protein synthesis in bacteria takes place on which of the following organelles? |
| A. | Endoplasmic Reticulum |
| B. | Golgi body |
| C. | Ribosomes |
| D. | Mitochondria |
| Answer» D. Mitochondria | |
| 11. |
RNAase is a single polypeptide chain of __________ amino acid residues. |
| A. | 2 |
| B. | 350 |
| C. | 4 |
| D. | 124 |
| Answer» E. | |
| 12. |
Which of the following bacteria can synthesize all of the amino acids required for protein synthesis? |
| A. | E.coli |
| B. | Lactobacillus bravis |
| C. | Saccharomyces cerevisiae |
| D. | Bacillus subtilis |
| Answer» B. Lactobacillus bravis | |
| 13. |
Translation takes place before transcription. |
| A. | True |
| B. | False |
| Answer» C. | |