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A DNA strand is represented by a string of the characters A, C, G, and T, each of whichrepresents

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A DNA strand is represented by a string of the characters A, C, G, and T, each of whichrepresents a nucleotide. The hamming distance between two DNA strands of the same length isequal to the number of positions in which they differ. Hamming distance is used inbioinformatics as a measure of the similarity of two strings. Write a DNA class that getsinitialized with a string of nucleotide characters. An instance of DNA responds to the to_s,length, and hamming_distance messages. Where a and b are DNA instances of the same length,the message send a.hamming_distance(b) returns the hamming distance between a and b:=> true>> dna1 ='ATTGCC')=> ATTGCC>> dna1.length=> 6>> puts dna1ATTGCC>> dna2 ='GTTGAC')=> GTTGAC>> dna1.hamming_distance(dna2)=> 2>> dna1.hamming_distance(dna1)=> 0>> dna1.hamming_distance('AT'))ArgumentError: dnas of different lengths from ass2.rb:17:in `hamming_distance' from (irb):8 from C:/Ruby22/bin/irb:11:in ''


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