F1 would give you mostly long finned DT and some with no lobes, but still carrying the DT gene.
Long fins are dominant while short fins are recessive. So lets say you cross a HM to a HMPK...you'll get mostly HM with some in between of long fins and short fins and then few short fins.
So by crossing DT in the mix, you'll get some long finned DT's with some in between DT short finned and long finned DT and then few short finned DT.
Its not that complicated, but just takes time and experience to learn basic genes.
Originally Posted by AFishTale
Gen1 would throw mostly HMPK with the doubletail geno correct? Or messy fins? I found a HMDT that I adore, but the best female that I have right now is a HMPK.