anchor.diff:          |> Seq.writeOrAppend path
           printfn "Writing is finished! Path: %s" path
   
  -
  +    ///if a FastA sequence is included this function searches the features corresponding sequence
       let getSequence (gFFFile : seq<GFFLine<#seq<'a>>>) (cDSfeature:GFFEntry)= 
       
   //        let firstCDS = 
  
positive.code: ﻿namespace BioFSharp.IO
  module GFF3 =
  
      open BioFSharp.IO
  
negative.code: 
          sequenceOfFirstCDS
  
      //Output: Nucleotides.Nucleotides [] (ATG...TAA)
  