A classification system is a system with a distribution of classes created according to common relations.
Had to look for the options and here is my answer. Based on the given experimentation above regarding some genetically identical mice, you would conclude that the two mutant strains of mice would most likely possess mutations in "<span>the same gene, but not necessarily the same DNA base position". Hope this answers your question.</span>
There isnt any choices but i know that the answer is Uracil (it's found in RNA)