In the mRNA codons, UUU encodes for phenylalanine (Phe), AGU encodes for serine (Ser), UGG encodes for tryptophan (Try), and CGA encodes for arginine (Arg). The DNA base sequence to encode for a protein try-arg-ser would be

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To encode for the protein try-arg-ser, the mRNA sequence would be UGGCGAAGU, corresponding to tryptophan (Try), arginine (Arg), and serine (Ser), respectively. To find the DNA sequence that encodes this mRNA, we need to replace uracil (U) in RNA with thymine (T) in DNA and complement each base: A with T, T with A, G with C, and C with G. Thus, UGGCGAAGU in RNA corresponds to ACCGCTTCA in DNA.

In the MRNA Codons, UUU Encodes for Phenylalanine (Phe), AGU