Multiple choice

Which of the following statements are FALSE regarding PSIBLAST?

  1. PSIBLAST uses PSSMs to score matches between query and database sequences.
  2. PSIBLAST is a statistically driven search method that finds regions of similarity between your query sequence and database sequences and produces ungapped alignments of those regions.
  3. The number of scoring matrices available for use with PSIBLAST is limited.

  1. Only 1

  2. Only 2

  3. Only 3

  4. Only 1 and 2

  5. Only 2 and 3
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

PSIBLAST is a statistically driven search method that finds regions of similarity between your query sequence and database sequences and produces gapped alignments of those regions. Within these aligned regions, the calculated score is a level higher than you would normally expect.

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