Sail E0 Webinar

MCQs

Total Questions : 80 | Page 1 of 8 pages
Question 1. Which of the following is not among the methods for finding localized sequence similarity?
  1.    Profile Analysis
  2.    Block Analysis
  3.    Extraction of Blocks from a Global or Local MSA
  4.    Pattern blocking
 Discuss Question
Answer: Option D. -> Pattern blocking
Answer: (d).Pattern blocking
Question 2. Block analysis methods use substitution matrices such as the PAM and BLOSUM matrices to score matches.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 3. The program Profilemake can be used to produce a profile from an MSA.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 4. Profiles are found by performing the _____ MSA of a group of sequences and then removing the _______ regions in the alignment into a smaller MSA.
  1.    local, more highly conserved
  2.    global, low conserved
  3.    global, more highly conserved
  4.    local, low conserved
 Discuss Question
Answer: Option C. -> global, more highly conserved
Answer: (c).global, more highly conserved
Question 5. Which of the following is untrue regarding the block analysis method?
  1.    Blocks represent a conserved region in the MSA
  2.    Blocks differ from profiles in lacking insert and delete positions in the sequences
  3.    Every column includes only matches and mismatches
  4.    Blocks may be made by searching for a section of an MSA alignment that is low conserved
 Discuss Question
Answer: Option D. -> Blocks may be made by searching for a section of an MSA alignment that is low conserved
Answer: (d).Blocks may be made by searching for a section of an MSA alignment that is low conserved
Question 6. In the method of extraction of blocks from a global or local MSA, a global MSA of related protein sequences usually includes regions that have been aligned without gaps in any of the 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 7. The pattern searching method type of analysis was performed on groups of related proteins, and the amino acid patterns that were located may be found in the Prosite catalog.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 8. Which of the following is not true regarding the BLOCKS?
  1.    The BLOCKS server can extract a conserved, ungapped region from a MSA to produce a sequence block
  2.    The server can also find blocks in a set of unaligned, input sequences and maintains a large database of blocks based on an analysis of proteins in the Prosite catalog
  3.    Blocks are found by the Protomat program
  4.    The program MOTIF doesn’t locate spaced patterns
 Discuss Question
Answer: Option D. -> The program MOTIF doesn’t locate spaced patterns
Answer: (d).The program MOTIF doesn’t locate spaced patterns
Question 9. Which of the following is not true regarding the BLOCKS?
  1.    Blocks of width 10–55 are extracted from a protein MSA
  2.    The protein MSA is up to 400 sequences
  3.    The program doesn’t accept manually reformatted MSAs
  4.    The program accepts FASTA format
 Discuss Question
Answer: Option C. -> The program doesn’t accept manually reformatted MSAs
Answer: (c).The program doesn’t accept manually reformatted MSAs
Question 10. Although MOTIF program is used successfully for making the BLOCKS database, it is limited in the pattern sizes that can be found.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

Latest Videos

Latest Test Papers