ASSIGNMENT Complete the following problems. Restriction enzymes (REs), which cut D NA at specific sequences, are classic tools in molecular biology. Because of their specificity in cutting DNA, REs can be used to “map” DNA sequences by analyzing the fragments generated upon restriction digest, as in the example shown in Figure Your task is to […]
Write a program that reads in the file “dna.seq” and counts the number of sequences with the following properties below.
Python The file “dna.seq” (on Blackboard) consists of several DNA sequences. Write a program that reads in the file “dna.seq” and counts the number of sequences with the following properties: The total number of sequences in the file The number of sequences that have the pattern CTATA The number of sequences that have more than […]
Why and when should you prefer PSI-BLAST over blastp? Why e-values differ in PSI-BLAST from first search to second iteration?
Bioinformatic Exam 1. (a) Why and when should you prefer PSI–BLAST over blastp? (b) Why e–values differ in PSI–BLAST from first search to second iteration? (c) What does PSSM stand for? Which BLAST search program uses the PSSM? (d) In what situation one needs to verify two putative homologs using pairwise alignment and why? 2. […]