Oh wow, this topic is crazy, it sounds like I'm back in my Molecular Bio course.
my chance to see if the hybrid will re-grow its tail like a chahoua
That is actually very interesting.
(Disclaimer-- I know nothing about gecko genetics, therefore, this is all a guess to me from what i do know.)
My thoughts would be that all hybrids are different, because when the cellls perform meiosis, the chromosomes are randomly seperated. So lets say the code for no re-growth was tt, and the code for regrowth was TT, and partial was Tt. Than it would be possible for the trait to vary every hatchling. The crestie would obviously have to give a "t", and if the chewie can actually, infact, re-grow his/her tail, they would have to give a "T", leaving with partial regeneration. If chewies can only make a partial regeneration, than they can either give a "T" or a "t" so its a 50/50 chance of partial/no regrowth.
Sorry if that sounded wierd, i confused my self
Gregor Mendel worked mostly with plants and cross-pollination to create hybrids. It was a much quicker method to get a basic study on genetics. Since his time though we have learned a heck of a lot more, but still use his experiments for a base. I don't think it will work the same for chahouas, since genetics is very tricky and nobody really knows about the genetics of Rhacs yet.
I agree with Kyle. The gene that controls regeneration and the one that inhibits it could be two completely different things. Example. A friend of mine gave me a culture of flightless fruitflies. He combined Melonastar (sp?) and Heidii (again forgive the spelling) in this culture. both were flightless yet when they hybridized I got a culture of fully flight capable fruitflies (that wasn't fun)
Point is both groups of purebred animals had the recessive trait for flightlessness. Yet a different gene must control that in each of the species because the hybrid's where all flighted.
All these posts about transcription factors and inhibitors is just like last semester lol. I would agree that it could be much more complicated than the Mendelian models of say pea plants. Even after all of this complicated talk of recessive/dominant, sex linked and or any other form that the trait may come in...after all that, once we really map the ciliatus genome
we may just find that they do carry the gene for tail regrowth but there might be some form of a threshhold of certain cell conditions in order for the gene to be 'turned on'. This is pretty exciting, cant wait to find out what is really going on here.
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