Question: Exercise 1: DNA sequences can be represented by words over the four letters alphabet. DNA = Four Nucleotides {C,G,A,T} Cytosine, Guanine, Adenine, and Thymine. if

Exercise 1: DNA sequences can be represented by words over the four letters alphabet. DNA = Four Nucleotides {C,G,A,T} Cytosine, Guanine, Adenine, and Thymine. if we can choose one of four letters at each position without restrictions. How many DNA sequences of length 50 there are? (we have 50 positions, no restrictions, repetition is allowed)

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