Codon

A codon is a sequence of three nucleotides in DNA or RNA that serves as a genetic code, specifying a particular amino acid or signaling the start or end of a protein. Think of it as a "triplet code" that instructs cells on how to assemble proteins, which are essential for bodily functions. There are 64 possible codons, and each one corresponds to a specific instruction. This system ensures that the genetic information is accurately translated into proteins, the building blocks and functional molecules within living organisms.