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MCQs

Total Questions : 50 | Page 5 of 5 pages
Question 41. In FASTA, For a Z-score > 15, the match can be considered extremely ______ with _____ of a homologous relationship.
  1.    insignificant, uncertainty
  2.    significant, uncertainty
  3.    significant, certainty
  4.    insignificant, certainty
 Discuss Question
Answer: Option C. -> significant, certainty
Answer: (c).significant, certainty
Question 42. Which of the following is not a benefit or a factual of FASTA over BLAST?
  1.    FASTA scans smaller window sizes
  2.    It gives more sensitive results
  3.    It gives less sensitive results
  4.    It gives results with a better coverage rate for homologs
 Discuss Question
Answer: Option C. -> It gives less sensitive results
Answer: (c).It gives less sensitive results
Question 43. Which of the following is not a benefit of BLAST?
  1.    Handling of gaps
  2.    Speed
  3.    More sensitive
  4.    Statistical rigor
 Discuss Question
Answer: Option A. -> Handling of gaps
Answer: (a).Handling of gaps
Question 44. BLAST uses a _______ to find matching words, whereas FASTA identifies identical matching words using the _____
  1.    substitution matrix, hashing procedure
  2.    substitution matrix, blocks
  3.    hashing procedure, substitution matrix
  4.    ktups, substitution matrix
 Discuss Question
Answer: Option A. -> substitution matrix, hashing procedure
Answer: (a).substitution matrix, hashing procedure
Question 45. The use of low-complexity masking in the BLAST procedure means that it may have higher specificity than FASTA because potential false positives are reduced.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 46. BLAST might not find matches for very short sequences.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 47. FASTA is derived from logic of the dot plot.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 48. BLAST often produces several short HSPs rather than a single aligned region.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 49. The initiation of FASTA format has ____ symbol.
  1.    >
  2.    <
  3.    /
  4.    *
 Discuss Question
Answer: Option A. -> >
Answer: (a).>
Question 50. The gapped portion in the diagonals represents matches in FASTA.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

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