How Do Supers Work?

[MasonC2K]

So understand that if you greed 2 pastels together, you can get a super pastel. And a super pastel you can breed to something and all the offspring with have pastel gene represented.

I also understand that there is no super form of a spider.

So my question is why? I know that pastel are incomplete dominants and spiders are full dominants based on what I've read. But that still doesn't help me.

Thanks.

[Tfpets]

Not huge on genetics, but I beleive the reason for no super spider is because it is lethal. Nobody has had one live.

[ZBP]

The reason for no super spiders is because it is not a co-dominant gene. All co-dominant genes can make super forms. And yes All supers bread to anything else will produce no normals.

[Royal Hijinx]

There may or may not be a homozygous form of Spider, and it may or may not be lethal.

For Dominate genes the heterozygous and homozygous phenotypes (visual expression) are the same. The only way to know if one is homozygous is to breed it repeatedly and always get heterozygous offspring. I believe BHB has done this with a Pinstripe.

Super is really reserved when the homozygous form of a codom/incomplete dom gene shows a DIFFERENT phenotype to the heterozygous one. ex. Super Mojo BEL.

Now, there is discussion whether or not an animal that has 2 different genes on the same allele that produce a different visual morph (ex Vanilla Cream) is a Super, since it is technically not homozygous for Fire or Vanilla.

[OhhWatALoser]

a little write up I did

http://www.owalreptiles.com/spider.php

[Jabberwocky Dragons]

So understand that if you greed 2 pastels together, you can get a super pastel. And a super pastel you can breed to something and all the offspring with have pastel gene represented.

I also understand that there is no super form of a spider.

So my question is why? I know that pastel are incomplete dominants and spiders are full dominants based on what I've read. But that still doesn't help me.

Thanks.

It might help if you look at it as the super form being the true form of the morph. Incomplete dominant morphs occur when one allele (wildtype normal gene) reduces the degree of the expression of the other allele (pastel). A Pinstripe (and possibly Spider) doesn't have a "Super" form but it's functionally the same as a Super Pastel in that it's the truest visual form of the morph. It's expression is not reduced in any way.