The correct answer is codon. Codons present in mRNA molecules translate for a particular amino acid.
What is a codon?
- A codon is a group of three DNA or RNA nucleotides that codes for a particular amino acid or protein synthesis halt signal.
- Four nucleotides make up the language of DNA and RNA molecules, while 20 amino acids make up the language of protein molecules.
- The key to translating between these two languages is provided by codons.
- The entire set of codons—each one corresponding to a single amino acid—is referred to as the genetic code.
- During translation, an mRNA's codons are read starting at a start codon and continuing until they reach a stop codon.
- The order of amino acids in a protein, from the N-terminus (methionine) to the C-terminus, is determined by mRNA codons, which are read from 5' to 3'.
Thus, a codon is a three-letter base sequence that translates for a particular amino acid.
Learn more about codons here:
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