# HM3_09 - S ={ATG GGG GGT GTA GTG TAT TGG Label edges and...

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CAP5510 Introduction to Bioinformatics Fall 2009 Homework #3 (Assigned Oct.26 Due: Nov. 2) 1. Consider the partial digest L ={1,1,1,2,2,3,3,3,4,4,5,5,6,6,6,9,9,10,11,12,15} Solve the partial digest problem L (i.e.,find X such that X=L .) [25 points] 2. Do Problem 4.16 and Problem 4.17 ( from text by Jones=Pevzner, pp.122- 123 [25 points] 3. Explain the basic idea behind SBH (Sequencing by Hybridization). What are its limitations for realistic Genome sequencing? Use the Eulerian path approach to solve the SBH problem for the following spectrum:
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Unformatted text preview: S = {ATG, GGG, GGT, GTA, GTG, TAT, TGG} Label edges and vertices of the graph, and give all possible sequences s such that Spectrum ( s , 3) = S [25 points] 4. DNA sequencing reads contain errors that lead to complications in fragment assembly. Fragment assembly with sequencing errors motivates the Shortest k-approximate Superstring problem: Given a set of strings S = ( S 1 , S 2 , … ,S t ) find a shortest string s such that each string in S matches some substring of s with at most k errors. [25 points]...
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