MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Bioinformatics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What does this representation mean- R.L.[EQD]? |
| A. | An arginine- Amino acid- Leucine- Amino acid- Either Apartic acid, glutamic acid or glutamine |
| B. | An arginine- Leucine- Either Apartic acid, glutamic acid or glutamine |
| C. | An arginine- Leucine- Amino acid- Either Apartic acid, glutamic acid or glutamine |
| D. | An arginine- Leucine- Apartic acid and glutamic acid and glutamine |
| Answer» B. An arginine- Leucine- Either Apartic acid, glutamic acid or glutamine | |
| 2. |
Which of the following is not a characteristic of exact matches in regular expression? |
| A. | There must be a strict match of sequence patterns |
| B. | Any variations in the query sequence from the predefined patterns are not allowed |
| C. | Provide more permissive matching by allowing more flexible matching of residues of similar biochemical properties |
| D. | Searching a motif database using this approach results in either a match or non-match |
| Answer» D. Searching a motif database using this approach results in either a match or non-match | |
| 3. |
Which of the following is not a characteristic of Fuzzy or approximate matches in regular expression? |
| A. | This method is able to include more variant forms of a motif with a conserved function |
| B. | the rule of matching is based on observations, not actual assumptions |
| C. | with the more relaxed matching, there is increase of the noise level and false positives |
| D. | the rule of matching is based on assumptions not actual observations |
| Answer» C. with the more relaxed matching, there is increase of the noise level and false positives | |
| 4. |
While analysing motif sequences, what is the major disadvantageous feature of PROSITE? |
| A. | The database constructs profiles to complement some of the sequence patterns |
| B. | The functional information of these patterns is primarily based on published literature |
| C. | Some of the sequence patterns are too short to be specific |
| D. | Lack of specificity about probability and variation and relation between them |
| Answer» D. Lack of specificity about probability and variation and relation between them | |
| 5. |
Emotif uses which databases for alignment of sequences? |
| A. | BLOCKS and PRINTS databases |
| B. | PROSITE |
| C. | BLOCKS |
| D. | PRINTS |
| Answer» B. PROSITE | |
| 6. |
In terminologies related to regular expressions which of the following is false about terms and operators? |
| A. | Terms are strings or substrings |
| B. | Operators combine terms and expressions |
| C. | Operators do not have precedence |
| D. | Operators have precedence like arithmetic operators |
| Answer» D. Operators have precedence like arithmetic operators | |
| 7. |
In regular expressions, which of the following pair of pattern is wrongly matched with its significance? |
| A. | [ ] Or |
| B. | { } Not |
| C. | ( ) Repeats |
| D. | Z Any |
| Answer» E. | |
| 8. |
Which of the following best defines regular expressions? |
| A. | They are made up of terms, operators and modifiers |
| B. | They describe string or set of strings to find matching patterns |
| C. | They are strictly restricted to alignment and corresponding score |
| D. | They consist of set of rules for the connotations of various amino acid residues |
| Answer» C. They are strictly restricted to alignment and corresponding score | |
| 9. |
While scanning for similarities in motifs, how regular expressions techniques work? |
| A. | It represents a sequence family by a string of characters and further compares them |
| B. | An algorithm similar to dynamic programming is used |
| C. | Dot matrix analysis is used in this type of sequence analysis |
| D. | Matrix analysis methods are used in this type |
| Answer» B. An algorithm similar to dynamic programming is used | |