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Three scores, Pnum (i), Hnum (i,j), and Ssum, have been derived to assist with a determination of the reliability of a secondary structure prediction for a particular base i or a base pair i,j. Which of the following is not a correct regarding Ssum?(a) is also called as ss-count(b) is the number of foldings in which base i is single-stranded divided by m, the number of folding(c) is the number of foldings in which base i is single-stranded multiplied by m, the number of folding(d) gives the probability that base i is single-strandedThe question was asked in an online interview.I'd like to ask this question from MFOLD and the Use of Energy Plots topic in section RNA Structure Prediction of Bioinformatics |
Answer» RIGHT choice is (c) is the NUMBER of FOLDINGS in which base i is single-stranded multiplied by m, the number of folding For explanation I would say: If Snum is APPROXIMATELY 1, then base i is probably in a single-stranded region, and if Snum is approximately 0, then base i is probably not in such a region. This reliability information has been used to annotate output files of MFOLD and other RNA display programs. |
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