Quote Originally Posted by Gib View Post
didnt use kind of punnet square....just some good old fashioned common sense...

Breed a visual animal to a visual animal and there is no way you can get a nonvisual offspring...simply for the fact that both every offspring will get atleast one copy of said genes
That only works for recessive traits, Gib... if you breed two animals with the same visual recessive morph, you cannot get anything but that recessive morph - like having a blue-eyed couple, who are not capable of producing brown-eyed children*.

Dominant traits don't work the same way, though - you can get the visual trait for either homozygous or heterozygous gene pairs. For example, a visual brown eyed couple can produce blue-eyed offspring... simply because the trait for blue eyes can 'hide' heterozygously under the dominant brown-eyed trait.

Likewise, the normal pattern trait can 'hide' under dominant Pinstripe... and if both pinstripe parents carry "not pinstripe" then there is a 25% chance for each egg that each parent will hand over the recessive normal trait to their offspring and produce a normal-looking hatchling.

* This is a massive simplification of the eye colour traits in humans - it's actually several related sets of genes that produce eye colour, and that's how you can get green, hazel and grey eyes - but generally speaking, blue eyes are recessive to brown eyes in the absence of any other eye colour genes.