It is also important to note that the genetic code does not overlap, meaning that each nucleotide is part of only one codon-a single nucleotide cannot be part of two adjacent codons. Furthermore, the genetic code is nearly universal, with only rare variations reported.

How do we know genetic code is not overlapping?

The genetic code is non-overlapping

During proteosynthesis the genetic code is read sequentially, i.e. one codon at a time. There is no possibility to skip some of the nucleotides. The process starts from an initiation codon and then continues until it reaches termination codon in a single translational reading frame.

Is overlapping a property of genetic code?

3. The Code is Non-overlapping: In a non-overlapping code, the same letter {i.e., base) is not used in the formation of more than one codon.