MCQOPTIONS
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MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Molecular Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following does not contain a stem-loop structure? |
| A. | tRNA |
| B. | Pseudoknot |
| C. | Ribozyme |
| D. | rRNA |
| Answer» E. | |
| 2. |
What is the minimum number of bases required for loop stability? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 3. |
Which of the following does not promote stability in stem-loop structure? |
| A. | Length of the stem |
| B. | Size of the loop |
| C. | A : U base pairing |
| D. | π orbital of aromatic ring |
| Answer» D. π orbital of aromatic ring | |
| 4. |
Most commonly known hairpin structures are found in _____________ |
| A. | DNA |
| B. | mRNA |
| C. | tRNA |
| D. | rRNA |
| Answer» D. rRNA | |
| 5. |
Inverted repeat have a number of biological functions. Which of the following is a biological function of an inverted repeat? |
| A. | Diseases |
| B. | Central dogma |
| C. | Cellular metabolism |
| D. | Genetic stability |
| Answer» B. Central dogma | |
| 6. |
Molecular cutters do not recognize the palindromic sequence. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Double-stranded structure of nucleic acid is the basic requirement for palindromic sequences. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
INVERTED_REPEAT_HAVE_A_NUMBER_OF_BIOLOGICAL_FUNCTIONS._WHICH_OF_THE_FOLLOWING_IS_A_BIOLOGICAL_FUNCTION_OF_AN_INVERTED_REPEAT??$ |
| A. | Diseases |
| B. | Central dogma |
| C. | Cellular metabolism |
| D. | Genetic stability |
| Answer» B. Central dogma | |
| 9. |
Which of the following does not promote stability in stem – loop structure?$# |
| A. | Length of the stem |
| B. | Size of the loop |
| C. | A : U base pairing |
| D. | π orbital of aromatic ring |
| Answer» D. ‚âà√¨‚àö√ë orbital of aromatic ring | |
| 10. |
Most_commonly_known_hairpin_structures_are_found_in______________$ |
| A. | DNA |
| B. | mRNA |
| C. | tRNA |
| D. | rRNA |
| Answer» D. rRNA | |
| 11. |
Which of the following does not contain a stem – loop structure?$ |
| A. | tRNA |
| B. | Pseudoknot |
| C. | Ribozyme |
| D. | rRNA |
| Answer» E. | |
| 12. |
What_is_the_minimum_number_of_bases_required_for_loop_stability? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 13. |
Which of the following is an example of an inverted repeat? |
| A. | ATTCGCGAAT |
| B. | ATCGNNNNCGAT |
| C. | TACCNNNNGGAT |
| D. | AGCCNNNCCGA |
| Answer» C. TACCNNNNGGAT | |
| 14. |
Molecular cutters do not recognize palindromic sequence. |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
Which of the following palindromes is not a restriction site? |
| A. | GAATTC |
| B. | TACGTA |
| C. | CCTAGG |
| D. | AGCT |
| Answer» C. CCTAGG | |
| 16. |
Palindromic sequences play a very important role in gene manipulation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 17. |
Which of the following is affected by palindromic sequences? |
| A. | Acetylation site |
| B. | Phosphorylation site |
| C. | Methylation site |
| D. | Promoter site |
| Answer» D. Promoter site | |
| 18. |
Which of the following will form a palindromic sequence? |
| A. | ATTGCAAT |
| B. | AGTCCTGA |
| C. | GTTCCAAG |
| D. | GTTGGAAC |
| Answer» B. AGTCCTGA | |
| 19. |
Which of the following words represents a palindrome? |
| A. | DUCK |
| B. | MAMA |
| C. | BOOM |
| D. | MADAM |
| Answer» E. | |
| 20. |
Double – stranded structure of nucleic acid is the basic requirement for palindromic sequences. |
| A. | True |
| B. | False |
| Answer» B. False | |