Bootstrap analysis evaluates evolutionary trees by sampling
columns from the original alignment with replacement
(multiplying or removing some of them) and computing a
proportion of times that a particular branch appears in the
resulting trees. What is the main idea behind this approach?
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When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts a) In the backward direction on the front wheel and in the forward direction on the rear wheel. (b) In the forward direction on the front wheel and in the backward direction on the rear wheel. (c) In the backward direction on both the front and rear wheels. (d) In the backward direction on both the front and rear wheels.
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If you had 1,500 base pair pieces of random DNA and you have to know how many of them had homology to known genes, what would you do to determine that?
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?
Why was the PatternHunter software program developed?
what is FASTA format?
The rate of the first order reaction depends on the (a) Concentration of the reactant (b) Concentration of the product (c) Time (d) Temperature.
All toffees are chocolates. Some toffees are not good for health. (a) Some chocolates are not good for health (b) Some toffees are good for health (c) No toffees are good for health (d) Both (a) and (b).
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 to identify highly mutated aminoacid from clustalw?
Integrate 3x + 5 / (x3-x2-x+1)?
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.
What are the main differences between parsimony,distance and likelihood-based algorithms?
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