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The single stranded DNA of phage `phixx174` has 5400 nucleotides. If average protein contains 200 amino acids, how many different proteins could this phage DNA code?A. 100B. 90C. 9D. 27

Answer» Correct Answer - C
5400 nucleotides in DNA will form 5400`-:`3=1800 codons.
200 aminoacids, i.e., 200 codons form one protein and therefore, `1800-:`200=9 proteins can be formed.


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