regexused in code please ex .[ ] [ ]
EARNING which validates a given DNA sequence (a strimg ent the method below a blic boolean isVal idDNACString dna) pu nce is represented by a string of letters each of which be valid, the sequence must: represents a nudesode. be made up exclusively of the capital letters:.A, C,G.and T, b. start with the amino acid “ATG”, and c. have a nucleotide count that is divisible by 3. a.
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