MCQOPTIONS
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MCQOPTIONS
This section includes 56 Mcqs, each offering curated multiple-choice questions to sharpen your Genetics knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The RNA primer synthesized during the replication process in bacteria is removed by |
| A. | DNA gyrase |
| B. | primase |
| C. | DNA polymerase I |
| D. | DNA polymerase II |
| Answer» D. DNA polymerase II | |
| 52. |
The nucleotide analogue used in DNA sequencing by chain termination termination method is |
| A. | 1 ,3 -dideoxy nucleoside triphosphate |
| B. | 2 ,3 -dideoxy nucleoside triphosphate |
| C. | 2 ,4 -dideoxy nucleoside triphosphate |
| D. | 2 ,5 -dideoxy nucleoside triphosphate |
| Answer» C. 2 ,4 -dideoxy nucleoside triphosphate | |
| 53. |
What will be the binding status of regulatory proteins in lac operon when concentrations of both lactose and glucose are very low in the culture medium? |
| A. | Only the repressor remains bound to the operator |
| B. | Only the cyclic AMP-Catabolic Activator Protein (cAMP-CAP) complex remains bound to the CAP binding site |
| C. | Neither the repressor nor cAMP-CAP complex remain bound to their respective binding sites |
| D. | Both the repressor and cAMP-CAP complex remain bound to their respective binding sites |
| Answer» E. | |
| 54. |
Which one of the following modifications is common toboth protein and DNA? |
| A. | SUMOylation |
| B. | Nitrosylation |
| C. | Methylation |
| D. | Ubiquitination |
| Answer» D. Ubiquitination | |
| 55. |
In a genetic study, 80 people were found to have alleles for polydactyly. Only 36 of them were polydactylous. What is the extent of penetrance percentage? _______ |
| A. | 15 |
| B. | 30 |
| C. | 45 |
| D. | 60 |
| Answer» D. 60 | |
| 56. |
A DNA sequence, 5 -A T G G A C G T G C T T C C C A A A G C A T C G G G C 3 , is mutated to obtain |
| A. | P, Q and S |
| B. | P, S and T |
| C. | Q, R and S |
| D. | Q, S and T |
| Answer» C. Q, R and S | |