The molecular evidence that can be used to determine the genetic relatedness of bacterial strains isolated from naturally occurring populations may be their genetic similarity which leads to expression of one type of proteins.
Step-by-step explanation:
The entire life of all organisms depend upon the proteins they produce to carry on their metabolism, this protein is based on the central dogma of life which in turn depends on the protein script of the organism, thereby a particular organism that lives in a same locality will code for similar types of proteins.