It can get even more complicated. Imagine that the Love Hypo reduces pigment 40%, just 40%, no more no less. But, some other allele X that is a different gene from the Love Hypo increases pigment 15% (or something).



Now, imagine you breed a homozygous allele X to a homozygous Love Hypo. Then you have double hets. Breed those together and you'll get hypos, hypos het for allele X, and hypos homo for allele X, with phenotypes that are 40% reduced pigment, 25% reduced pigment, and 5% reduced pigment.



Now imagine there is some gene Y that reduces pigment but is also not the same as the Love Hypo gene. It just turns down pigment production by 25%, but only when it is mixed with Love Hypo. Then with the double het breeding (like above but with allele Y switched in for allele X), you'll get hypo animals animals that are 40%, 65%, and 90% reduced pigment. However, with allele Y is all on its own in a wildtype background you won't see pigment reduction in either the homo or het allele Y individuals. Kind of sounds like a hypo, mega, extreme.



Whether this was fun, or headache inducing, is up to you all!

Vinny
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“There is a grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that whilst this planet has gone on cycling according to the fixed laws of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved.” -C. Darwin, 1859



Natural Selection Reptiles

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