...question about hets...

[Jae iLL]

Ok, so I realize if you breed a recessive with a normal you're going to get some normals and some hets. However, you can't tell which one's the normal and which one's the het without proving them out, correct? So why is it that when I see some het babies, they are advertised as 100% het, yet they're obviously not old enough to breed. So how do they know they're 100% het? Am I missing something?

[JLC]

You mean if a recessive morph is bred to a normal...you'll get hets. A "dom" morph is one that will produce visible babies when bred to a normal mate.


A recessive trait (such as albino) requires two genes to achieve the visual effect. Each parent contributes one gene from the two that they are carrying. SO....if an albino male already has two albino genes...and he is bred to a normal carrying two normal genes....then he must pass on one of his albino genes to match up with her normal.

This means you can know that his babies carry the gene and are 100% guaranteed to be het for albino.

If you have an albino het....that means he has one albino gene and one normal....when he breeds, he might pass on the albino gene, or he might pass on the normal gene...you never know...so his babies would be called "possible hets."

Hope that makes sense.

[Nate]

well if you breed a known het with a visible het, then that will produce 100% hets and visible morphs.

[jglass38]

100% hets are the normal looking offspring from breeding a homozygous animal to a normal. 66% hets are the normal looking offspring from breeding a homozygous animal to a 100% het. 50% hets are the normal looking offspring from breeding a 100% het to a normal. Hope this helps!

[Sputnik]

You see 100% hets if the normal was bred to a visual recessive morph.

Example, Albino to Normal Female.... all the off spring will be %100 het for Albino.

Hope that helps!

[jglass38]

I think Judy explained it much better than I could. Part of the reason I tend to stay out of the genetics discussions

[Jae iLL]

well that makes a lot more sense to me now, thanks for the replies.

[Stewart_Reptiles]

Not dominant, but recessive gene

If you breed an homozygous (visual form such as albino or pied etc) to a normal all your offsprings will be het (100% het)

However if you breed a 100 % het to a 100% het your offsprings will be considered 66% het, and if you breed an 100% het to a normal your offsprings will be considered 50% het.

In those cases you will have to prove them out to know which one are het

This will give you the idea http://www.ballpython.ca/what_get/recessive.html

[jglass38]

100% hets are the normal looking offspring from breeding a homozygous animal to a normal. 66% hets are the normal looking offspring from breeding a homozygous animal to a 100% het. 50% hets are the normal looking offspring from breeding a 100% het to a normal. Hope this helps!

And again proving I have no ability to type, eat and watch tv at the same time.

66%ers are from het to het breedings...

[Sputnik]

And again proving I have no ability to type, eat and watch tv at the same time.

66%ers are from het to het breedings...

As long as you didn't spill your food it's all fine!