P = probability of a single egg not producing a pastel
^ = to the power
n = number of eggs.
The probability of producing a pastel is 25% = 0.25. So P = 0.75.
By a little trial and error with my calculator, n = 17. So you hatch 17 eggs. Every baby is normal, enchi, bright enchi or something other than a pastel. Then you have a 99.2% probability that the bright enchi parent is not a pastel enchi. More eggs raises the probability, but 99% is a good cutoff point.
If one or more pastels hatch, then you can stop before 17 eggs, of course.
Thanks for posting. I remember a similar formula from Bio classes.
1.0 Striped African House Snake "Marduk"
0.1 Striped African House Snake Ishtar
1.0 black phase Brown House Snake Seth
0.1 black phase Brown House Snake Nephthys
Yea that works for dominant gene but....
What if Your "dinker" is Recessive ?? I took like 5-6 years ??? for BHB to Prove Sunset....???
Very true. But my question was specifically about already proven incomplete dominates
I would think a possible recessive / dinker would take at least 4 years to prove out. All depends on how many girls you get from the first pairings (assuming your dinker was a boy.) Girl dinkers would take longer to prove I suspect.
I thought I read somewhere that brain admitted to dropping the ball a bit with the sunset, as in wasn't pushing proving it out after it didn't show up as incomplete dom? I could be way off in la la land on that one.
Edit: think I misinterpreted the first part of the post, disregard my second sentence. >_<