There are 248 , 4 -element DNA sequences do not contain the sequence cug.
There will be 8 sequences that still do include CUG since there were 4 five sequences of the specific form CUG as well as 4 four-element sequences of something like the form CUG. Considering that there are 44 = 256 total four-element sequences, there have been 248 four-element segments that do not possess CUG.
Codons are created by combining the letters in sets of three to create code "words." Except when it encodes for a beginning or stop signal, each codon represents (encodes) one amino acid. In proteins, there will be 20 common amino acids. The 20 amino acids can be coded and use more than 64 of the available codons.
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