quick genetics question

I am still a little confused about which genes are dom or rec.
So if you breed a 100% het pie to a 100% het pie what is the baby ratio?
Does it matter if they are from the same clutch or related?

Thanks, you guys are always soooooo much help and full of great knowledge!!!!! :bow:

It would rbeak down like this.
25% pied
50% het pied
25% normal

the hets and the normal all look the same so they would be considered 66% het pied because you have that much of a chance of them being het for pied.

Those percentages are per an egg chance.

------N---- a
N---- NN--- Na
a---- Na--- aa

So if Na = het
Then you chances on percentages are
¼ norm (NN)
¼ morph (aa)
½ het (Na)


I could not figure out the table thing. Sorry. I see the question answered.

ok so if the chances are about 25% what is the likelihood, in real life, of getting a morph in the clutch?
and does it matter if they(the breeding pair) were from the same clutch?

I have not purchased them yet, I'm still trying to decide if its worth it.

One more curiosity for you, if you don't mind.:) I am attached to all of my BPs but one in particular. Is it a big health risk to the female to breed?

Thank you sooooo much for the help!!!:gj:

Quote:

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Originally Posted by Waffles13ilj

ok so if the chances are about 25% what is the likelihood, in real life, of getting a morph in the clutch?
and does it matter if they(the breeding pair) were from the same clutch?

I have not purchased them yet, I'm still trying to decide if its worth it.

Thank you sooooo much for the help!!!:gj:

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No way to tell. You have a possibility of all norms or all morphs. More likely however is a clutch of 6-8 and you know the odds from there.

I have a pair of het for axanthics I got from Ralph Davis and I can not hardly wait to breed them. My gal isn't big enough though.

As for it being worth it. It all depends. If you have big sums of cash to shell out then you don't have to wait for hets and you can buy the morphs themselves. If your like me and you don't have thousands to spend, then it's very much worth it IF you go through a reputable breeder. I would never get a het from someone without a history because you have no realy way of knowing that your getting what they say your getting!

People use %'s in the description of a particular snake, but that can be confusing to some.

You can't have a snake that has 66% of the Pied gene. Every snake is either Heterozygous for Pied (carries the Pied gene but only inherited from 1 parent so not visual), Homozygous for Pied (inherited the Pied gene from both parents and is visual), or does not carry the Pied gene.

The 66% Het Pied just means that of the non-visual Pieds in the clutch, odds say that 66% of them do in fact carry the Pied gene and 33% don't. You can guess which are the 66% and which are the 33% by looking for markers, but the only way to be sure is to produce a visual Pied when breeding the snake.

Visual Pied X visual Pied = all visual Pied
Visual Pied X Het Pied = 50% visual Pied, 50% Het Pied
Het Pied X Het Pied = 25% visual Pied, 50% Het Pied, 25% no Pied gene (odds say that 2 out of 3 of your normal babies carry the Pied gene and 1 out of 3 doesn't. People just say "66% Het Pied" to denote it was a Het X Het breeding.)

Quote:

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Originally Posted by Waffles13ilj

I am still a little confused about which genes are dom or rec.
Does it matter if they are from the same clutch or related?

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pied is recessive, no it does not matter if their related at all.

Quote:

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Originally Posted by Waffles13ilj

ok so if the chances are about 25% what is the likelihood, in real life, of getting a morph in the clutch?
and does it matter if they(the breeding pair) were from the same clutch?

---

....you answer your own question here, the likelihood in real life is 25% chance for a morph in each egg. 50% chance for each egg to be a het and 25% chance to be normal. see above for why the hets/normals are all 66% hets. and again no it doesn't matter if their related what so ever.

you guys always have such good info!!!!!!!!
Thank you sooooo much!!!!
Where would I be without this forum?????

That's what the forum is for. So many people out there that have been through our situations and are actually willing to help is a very good thing. As for this question, I know people that seem to hit on the best possible snake out of every clutch, no matter what the odds are, and I know others that can't buy a break. Depends how lucky you are that day XD

Your question about the chances of the offspring being pied has been answered but I do have something to say about breeding related individuals. Breeding related individuals will not bother the offspring for the first few generations, but repeatedly breeding related snakes (line breeding) can cause issues with the offspring. Ralph Davis has a video on youtube about some line-bred albinos and one clutch came out pretty bad, so just make sure not to line breed and you should be fine.