The order of codons is determined by the DNA sequence. Thus, the correct option is A.
What are Codons?
Codons may be defined as a sequence of three consecutive bases of nucleotides in a DNA or RNA molecule that codes for a specific amino acid. An example of a codon AGU specifies the amino acid serine.
The DNA sequence significantly determines the order of codons. It DNA sequences, a stretch of gene present that encodes the protein for specific functions and messengers to act at target sites.
Such proteins are constructed with the help of building units or monomers known as amino acids. Such amino acids are encoded by a sequence of three consecutive bases of nucleotides that is known as codons.
Therefore, the order of codons is determined by the DNA sequence. Thus, the correct option is A.
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