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| # Read the file and get the DNA string | |
| file = open('sample_dna.txt', 'r') | |
| dna = file.read() | |
| # Print the original DNA string | |
| print "DNA String: ", dna | |
| # Print the count of each letter | |
| print "Count of A: ", dna.count("A") | |
| print "Count of C: ", dna.count("C") | |
| print "Count of G: ", dna.count("G") | |
| print "Count of T: ", dna.count("T") | |
| # End of program |
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Counting DNA Nucleotides
Solution for problem at ROSALIND.info