What Makes What and Het Info

[amcceney]

Hang on, im trying to learn as i read this too...
If you set up a punnets square, say with a Het for albino, and a Normal, the offspring will all be Het, none of them will actually be albino.. right? So if one was to invest in a 100% het for albino, in order to produce albinos, you would have to breed it with either another het, or an albino, correct? Bred with a normal will only produce more hets? ...i think...

[Jay_Bunny]

If you cross a het and a normal, each of the offspring have a 50% of being het and a 50% chance of being normal. If you cross two hets, you have a 25% chance of having homozygous recessive individuals which would then display the morph trait, 50% chance of hets, and 25% chance of normals. Crossing a het and a homozygous individual will give you a either all hets or hets and homozygous individuals.

Am I right? Someone correct me if I'm wrong.

[Jay_Bunny]

Cross Two Hets

---A a

A AA Aa

a Aa aa


Cross Het and Normal

---A a

A AA Aa

A AA Aa


Cross Het and Homozygous

---A a

a Aa aa

a Aa aa


Cross Normal and Homozygous

---A A

a Aa Aa

a Aa Aa

[GirDance]

Legend for Jay Bunny's punnet squares:

AA = Normal
Aa = Het
aa = recessive morph trait.

Well done on that one

[Jay_Bunny]

Thanks. At the moment, I'm working on a list of all the morphs I can find. I'm using this link to find information on morphs.

http://www.newenglandreptile.com/ner...=543&Itemid=76

Lots of good information there. It will help me understand what you get when you cross two different morphs. I'm trying to understand all this

[morti]

Thanks. At the moment, I'm working on a list of all the morphs I can find. I'm using this link to find information on morphs.

http://www.newenglandreptile.com/ner...=543&Itemid=76

Lots of good information there. It will help me understand what you get when you cross two different morphs. I'm trying to understand all this

Buy the book. I'm serious. It will un-boggle you.

[Jay_Bunny]

Which book?

[morti]

If you cross a het and a normal, each of the offspring have a 50% of being het and a 50% chance of being normal. If you cross two hets, you have a 25% chance of having homozygous recessive individuals which would then display the morph trait, 50% chance of hets, and 25% chance of normals. Crossing a het and a homozygous individual will give you a either all hets or hets and homozygous individuals.

Am I right? Someone correct me if I'm wrong.

Your math is correct, and you even worded it correctly in that each animal has x% chance of being het or normal.

The mystical 66% possible het comes from that het x het breeding... you are correct that 25% of the babies should be homozygous. The other 75% look normal, so you can't tell the hets from the normals. That is why each normal appearing snake has a 66% chance of being het.

The homozygous x het breeding should result in half of the babies being homozygous and half being 100% hets.

... oh and, your Punnett Squares are correct as well. Good work.

[FIREball]

According to that model if you bred an albino with a normal you should get all het albino, correct?

Well I was looking on Cypress Creek Reptiles and they bred albino and normal and resulted in 2 albino and 3 het albino.
http://www.cypresscreekreptiles.com/clutchbyclutch.htm

[morti]

According to that model if you bred an albino with a normal you should get all het albino, correct?

Well I was looking on Cypress Creek Reptiles and they bred albino and normal and resulted in 2 albino and 3 het albino.
http://www.cypresscreekreptiles.com/clutchbyclutch.htm

Their "Regular Ball Python" was a het. And they got 5 albinos (2.3 = 2 males and 3 females) and 3 hets. They didn't say it was a het, but it was.