BUSINESS INTELLIGENCE2 Business Intelligence Mid Term Exam 1.After building the profile HMM, each sequence will have a unique alignment with that HMM Any sequence can be represented by a path through any profile HMM model 2.ATTC A1-1-1-1 G0-2-2-2 A1-3-3-3 C0-4-4-2 3.DDATC D11-1-1-1 A000-2-2 --2-2-2-4-4 T-3-3-3-3-5 C-4-4-4-4-4 4.DNA contains the genetic information of an organism The process called slicing cuts exon sequences and joins introns together 5.Compared to PAM 100, PAM 250 is more proper to score diverse sequence alignments Two sequences with 100 residues each can be 2 PAM units apart, but with only one position different from each other 6.By using a pseudo count you will incorporate more information into the construction of an alignment that exists in the sequences themselves Pseudo count will bias the sequences used in building a HMM 7.Blast is a tool for sequence alignment One can search for a protein sequences using BLAST against a nucleic acid database
BUSINESS INTELLIGENCE3 BLAST search results depend on the scoring matrix used 8.The number of genes is always more than the number of proteins in a cell mRNA is a single stranded RNA Genes comprise a piece of the DNA sequence and encode proteins 9.Global alignment measures sequence similarity of the whole genome Local alignment can be used to detect functionally important regions 10.0.25+0.25+0.25+0.25=1.00 11.A = 0.8 B =0.5 C=0.2 D=0.5 E=0.8 F= 0.2 G= 0.5 H=1 I= 0 J=0.8 12.AGTCAGCT A1-1-1-11-1-1-1 T0-20-20-2-20 A1-3-1-31-3-3-1 C0-4-2-20-4-2-2 A1-5-3-31-5-3-3 C0-6-4-20-6-2-4 T-1-7-3-3-1-7-3-3 Global alignmentTCA-T-A--- Local alignmentTCTGTCAGCT 13.
BUSINESS INTELLIGENCE4 Where n±βγ is number of dinucleotides =8_ 0.25(0.18+0.368+0.274+0.188) =8_ 0.25(1.01)8 =29.551 The sequence does not come from a CpG island
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