anchor.diff:  ﻿namespace BioFSharp.IO
  +///Contains functions for reading and writing GFF3 files
   module GFF3 =
   
       open BioFSharp.IO
  
positive.code: 
          sequenceOfFirstCDS
  
      //Output: Nucleotides.Nucleotides [] (ATG...TAA)
negative.code:                 |> Seq.skip startPos 
                  |> Seq.take (endPos - startPos + 1)
  
              | '-' ->
                  let phase    = cDSfeature.Phase
                  let startPos = cDSfeature.StartPos - 1 
  