anchor.diff:      open FSharp.Care.Regex
       open System.Collections.Generic
       open System.Text
  +    open FSharp.Care.Collections
  +    open BioFSharp.Nucleotides
  +    open FSharp.Care.String
       
       ///Iterate over an array yielding the result of applying a function to each element in a sequence
       let rec private arrayIteriYield (mapping: int -> 'a -> 'b) (a:array<'a>) =
  
positive.code:         else
              printfn "Collection does not contain features. Result is empty"
              []
      
      ///Returns the Origin of a GenBank file representation
      let getOrigin (gb:Dictionary<string,GenBankItem>) =
          if gb.ContainsKey("ORIGIN") then
  
negative.code:             seq {
                  for i in gb do 
                      let lines = stringyfy i.Key i.Value
                      yield! lines
  
                  if gb.ContainsKey "ORIGIN" then
  