het x het of two different traits

[emroul]

Hey everyone,

I am seeming to really understand the whole genetics thing when it comes to the questions regarding "What will come out if I breed x to x", etc...I have no problems understanding co-dom from dom and recessive. I was just thinking about what my next "big" purchase should be.

Right now I have a pair of het albinos (Snake Keeper line), and I want to eventually make snows. My question is this: If I bred a 100% het albino to a 100% het axanthic, would I statistically get 1/4 (so, one of each morph out of 8) of each morph still, just as if it were a het albino x het albino breeding? Or would all the offspring from a het axanthic x het albino breeding be DH or PDH snow? That's one of the only things that I don't get. :rolleyes:

Should I just buy an axanthic male and save myself the frustration? I was just wondering if the het albino x het axanthic would work to get the two morphs, why not save me some cash? :D

Thanks for any and all help. :)
Jennifer
emroul@cox.net

[nita]

OK, I love the genetics aspect of breeding so let me give this a shot. A het Albino to a Het Axanthic would produce normals 25% chance het albino ,25% het axanthic and, 25% het snow(double hets). If you bred an Axanthic to your het albino you would get het axanthic with 50% chance double het. Hope this helps out.

This is how to figure it out a rough punnets square you place on parents genetics on the top and the other down the side to figure out the possible combinations. N represents normal, a albino, x Axanthic. Since none are aa, xx or aaxx. All would look normal.

| N | a |
=========
N |NN | Na |
=========
x | Nx | xa |
=========

[elevation24]

You would need a axanthic and an albino in order to produce offspring that are definite double hets for snow, and then you would breed the offspring together to produce the snow - but only if you get lucky, because from what I remember reading there is only a 1/16 chance of producing a snow, so you don't have very good odds.

I don't think I would even bother with hets in this one :( The road seems very long and hard as it is, and using hets will probably double the time it will already take.

I don't know a whole lot about genetics so I am not sure what would happen if you were to use a het albino and a axanthic.

[RandyRemington]

If money is no object just go buy a snow ;)

Those of us on a budget do the best we can.

I purchased a 66% chance het albino male that is also 50% chance het Jolliff axanthic. I've already proven him het albino with a 50% chance het albino girl that also proved. Didn't take any longer to breed them than 100% hets or albinos, just took more luck. I've kept two of his normal daughters from females that didn't prove het albino (jury is still out on one due to small clutch size). These are at least 50% chance het albino and I figure 25% chance het axanthic (actually 50% or 0% depending on if their dad also hits his 50% chance het axanthic or not). It's a long shot but how else could I have a shot at producing snow in 2005 for a few hundred $ investment.

[Tim_Cranwill]

You can pick up on the basics of recessive genes at http://www.cranwill.com I have a genetics primar that you might find useful... :)

[MarcB]

You will reach your goal for a ''Snow'' using the pairing you mentioned, with lots of patience working out the genetics, there is absolutely no reason anybody should tell you otherwise...

Whats the rush! Why spend the big bucks to produce faster when you can do it taking a little longer and reaching the same results as the breeder spending the big bucks? Is this a hobby for you or your primary source of income?

Good Luck

Marc
SbS

[emroul]

Randy, I have thought about going down the road you are taking to get there, but I can almost guarantee you that I would be SOL with those "hets". That's just my luck. BUT if I start out with a het pair of each morph, get one homozygous out of each clutch, breed those two together, I am then working with DH snows, I don't have to worry about 44% or 25%. That would ease my tension, ALOT. I don't like guessing. Even though it is just a hobby for me, I still don't like waisting my time.

Thank you for that link, Tim. :)

Oh, it's just a hobby Marc. I LOVE these animals. I want to be able to produce my own snow rather than buying one flat out. That isn't any fun. :p Since I have a pair of het albinos, there is no need to buy an albino (though I should have thought that through, lol). I will probably buy a het pair of axanthics. So what if I'm a little "late" in the game, huh? It will be fun knowing I produced all these animals.

Thanks for all your input guys,
Jennifer

[Jeff_Favelle]

Your best bet, as well as cost-effective, would be to get a female axanthic now! That way, when you breed your het albinos, you can keep back your first male albino, and when he's ready to breed, you'll have the axanthic that should ready as well. Double hets! Just like that!

[emroul]

But then what if my first albino is a female? :( My luck, I would buy a male axanthic and get a female albino or vice versa, lol. I may just do that though, Jeff. I gotta think this through. That would be cost effective, though.

Jennifer

[scalawag]

Another Great DNA tutorial is http://www.serpwidgets.com/cornsnakes/Genetics/genetics.html

Good luck

[RandyRemington]

If you produce a female albino I bet you could find someone to trade it for a male.