MCQOPTIONS
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This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Bioinformatics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is true regarding Protein flexibility? |
| A. | Methods have been described for the introduction of side-chain flexibility to both protein-ligand and protein-protein docking |
| B. | Methods have been described for the introduction of side-chain flexibility to protein-ligand docking only |
| C. | The Mean Field principle is rarely used in this |
| D. | Methods have been described for the introduction of side-chain flexibility to protein-protein docking only |
| Answer» B. Methods have been described for the introduction of side-chain flexibility to protein-ligand docking only | |
| 2. |
Stochastic methods can guarantee reaching a global optimal solution and the methods are computationally costly in comparison to the other methods. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Genetic methods (genetic algorithms and evolutionary programming) store multiple solutions. These solutions form a population of members. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
In a Monte Carlo simulation the score (or energy) is calculated at each step and compared to the previous step. The probability of accepting the step is given by _________ where ΔE is the difference in energy; kB is Boltzmann’s constant and T the temperature. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
The disadvantage of Multiple conformation rigid-body method is that the active conformation may be missed as the result of a minor structural difference not considered in the ______ ligand conformations. Where, the N is the number of low-energy conformations. |
| A. | N +1 |
| B. | N |
| C. | N2 |
| D. | N/2 |
| Answer» C. N2 | |
| 6. |
STOCHASTIC_METHODS_CAN_GUARANTEE_REACHING_A_GLOBAL_OPTIMAL_SOLUTION_AND_THE_METHODS_ARE_COMPUTATIONALLY_COSTLY_IN_COMPARISON_TO_THE_OTHER_METHODS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which_of_the_following_is_true_regarding_Protein_flexibility?$ |
| A. | Methods have been described for the introduction of side-chain flexibility to both protein-ligand and protein-protein docking |
| B. | Methods have been described for the introduction of side-chain flexibility to protein-ligand docking only |
| C. | The Mean Field principle is rarely used in this |
| D. | Methods have been described for the introduction of side-chain flexibility to protein-protein docking only |
| Answer» B. Methods have been described for the introduction of side-chain flexibility to protein-ligand docking only | |
| 8. |
Genetic methods (genetic algorithms and evolutionary programming) store multiple solutions. These solutions form a population of members? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
In Stochastic search methods, they include methods such as Monte Carlo simulation, simulated annealing, Tabu search, genetic algorithms and evolutionary programming. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
The disadvantage of Multiple conformation rigid-body method is that the active conformation may be missed as the result of a minor structural difference not considered in the ___ ligand conformations. Where, the N is the number of low-energy conformations. |
| A. | N +1 |
| B. | N |
| C. | N<sup>2</sup> |
| D. | N/2 |
| Answer» C. N<sup>2</sup> | |
| 11. |
In Multiple conformation rigid-body method, a ligand is assumed to be able to adopt a number (N) of different _______ that are computed _____ the ligand being docked into the receptor. |
| A. | low-energy conformations, after |
| B. | low-energy conformations, prior to |
| C. | high-energy conformations, prior to |
| D. | high-energy conformations, after |
| Answer» C. high-energy conformations, prior to | |
| 12. |
In case of Protein-ligand docking, ______ ligands are often _____ in adapting their shape to fit the receptor binding pocket. |
| A. | small molecule, highly flexible |
| B. | large molecule, highly flexible |
| C. | large molecule, more flexible |
| D. | small molecule, less flexible |
| Answer» B. large molecule, highly flexible | |
| 13. |
Typical motions of proteins will be primarily treated by a rigid body model for docking. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Proteins are dynamic entities that undergo _______ |
| A. | only fluctuation of flexible loop regions about equilibrium positions when in solution |
| B. | only limited conformational change of amino acid side-chains when in solution |
| C. | both limited conformational change of amino acid side-chains and fluctuation of flexible loop regions about equilibrium positions when in solution |
| D. | illimitable or total conformational change of amino acid side-chains when in solution |
| Answer» D. illimitable or total conformational change of amino acid side-chains when in solution | |