import random def create_dna(n, alphabet=’acgt’):     return ’’.join([random.choice(alphabet) for i in range(n)]) dna = create_dna(1000000) ----------------------------------------------------------------------------------------------------------------------------------------------- Creates a dna variable containing a string of length 1000000, and with the a,c,g,t characters. Creates a dna variable containing a string of length less than 999999, and with the a,c,g,t characters. Creates a dna variable containing a string of length 999999, and with the a,c,g,t characters. Creates a dna variable containing a string of length 999999, containing the 'acgt' substring repeated

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