What Makes What and Het Info

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.

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

Quote:

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Originally Posted by 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.

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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. :)

Legend for Jay Bunny's punnet squares:

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

Well done on that one :)

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 :rolleye2:

Quote:

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Originally Posted by 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 :rolleye2:

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

Which book?

Quote:

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Originally Posted by Jay_Bunny

Which book?

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http://www.newenglandreptile.com/ava...&cat=33&page=1

This one! ;)

http://www.newenglandreptile.com/ava...bookcover2.jpg

Wow! That book is definatly going on my X-mas list. Can't get it now. :(

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