If a match from a sequence database search is reported to
have an E-value of 0.0, should it be considered highly
insignificant or highly significant?
How did you get into the field of bioinformatics?
What two possibilities are there to describe how gene fragments may have evolved?
what is a Homologue?
Suppose you used the NCBI Blast server to look for a match to a fruit-fly gene. Suppose further that the best alignment contained this section of an alignment: Hit from database: XXXXXXXXXXXXXXNFSTSQ User sequence: SLEAEAAPASISPSNFSSSQ What do the Xs signify?
How to find patterns in noisy data?
Which of the following is not an essential condition for interference (a) The two interfering waves must be propagated in almost the same direction or the two interfering waves must intersect at a very small angle (b) The waves must have the same time period and wavelength (c) Amplitude of the two waves should be the same (d) The interfering beams of light must originate from the same source.
How you caluculate sensitivity and selectivity of Blast?
In the next two or three years what will the important advances in the field be?
Can independent origins be established for two families of transport systems having no sequence or motif similarities without three-dimensional structural data?
What is the main idea of maximum parsimony in phylogenetic tree construction? What are the drawbacks?
What is the most abundant element in the universe ?
Suppose the Blast search returned 100 hits. Of these, 17 were false positives and we knew that there were 165 sequences in the database which should have returned a hit with our sequence. How many false negatives were there, and what is the sensitivity and selectivity of Blast in this instance?