im here to discuss the genetics, not to bash.
i believe every successive DTxDT (whether related or not) will further damage the line. a first generation DTxDT is equivalent to a third generaion of STxDT. im probably wrong but i will try my best to explain my reasoning for thinking this way.
case 1: DTxDT (both male and female have dt/dt alles from their parents)
F1 will have dt/dt alles.
case 2: DTxST
F1 will have dt/st alles but will have no DT
F2 will produce 25% DT. of that 25%, they will have dt/dt alles.
F3 all of the offspring have dt/dt alles from both parents
my conclusion: F1 DTxDT = F3 DTxST.
of course the genetics is far more complex than what i have shown. i just used some logic and reasoning to plea my case.
Last edited by andakin; 09-27-2009 at 02:10 PM.