Question

okay im totally lost here,
the question i need to answer is

explain why codons can't consist of two bases instead of three for each amino acid.

im so confused..help!
bobpursley
There wouldn't be enough codes in a two base system. With a three base system, as in UGA, there are sixty four possible codes, in a two base system, as in UA, there are only 16 codes available.

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