Reptile & Amphibian Forums

I'm wondering about hets. I know that Albino Hog Albino Hog= Albino Hog babies. What I'm unsure of is when I see 100% Het, 66% Het, 50% hets. I understand that Albino is a simple recessive gene. What I'm unsure of are the ratios. Would 100% Het 100% het give half albino, half normal looking that are also 100% hets? And how do you come up with the 66% and 50%? What sort of ratio would you expect with a 66% 66% pairing, etc? Is there a simple rule of thumb to follow without needing a degree in genetic biology?
Thanks!!!
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Sam
Gecko Den
Email Me

this is all in thoery of course but

if you breed an albino to a normal you get 100% hets.
if you breed a het and a het you should get 25% albinos, 50% hets (normal looking, but carries albino gene), and 25% normal
since the norals, and the hets all look the same, you8 sell them as 66% possible hets.

now im not sure about the 50% though.

Albino x Albino= a clutch of all albino hatchlings
Albino x normal= a clutch of all 100% het for albino hatchlings

Het x Het= a clutch of 25% albinos, 25% normal, and 50% hets. 75% of the clutch would look normal but 2/3 of those would be hets. This is where your 66% hets come from. The obvious problem is that you cannot distinguish the normals from the hets. As an example, a clutch of 8 from a het x het breeding = 2 albinos, 2 normals, and 4 hets.

Het x normal= a clutch of normal appearing hatchlings but they have a 50% chance of carrying the albino gene. Possible Het.

Hope this helps
John Q

I was looking at the percentages all wrong. I thought that the % referred to the odds of the offspring being albinos. However, if I understand what it is you are saying correctly, the percentage actually refers to the chance of the animal in question actually carrying the albino gene. So the gene is either present or not present, and based on the parents, it refers to the odds of that gene being passed on to the offspring by the parent. Albino to normal, guarantees that the gene is present, the rest is a gamble based on the fact that hets appear normal. The only part about that I don't like is that even if I buy 66% hets, there is still a 33.33333 chance that I'm getting normals. Hmmm, guess I need to find someone with 100% hets for sale just to be on the safe side. Anyone know where I could get some?

Thanks a lot for explaining things, It is greatly appreciated!
Happy New Year!
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Sam
Gecko Den
Email Me

Okay now you got me thinking which is quite hard to do : ) What about an albino to a 100% would thaty be the same as a 100% het to 100% het?

ok what about 66%male to normal female di i have any chance of albino

A VERY slim chance.

Your male would have to hit the mark and the "normal" female would have to be an unknown het for albino as well.

It's statisically very improbable for the female to be an unknown het, but there is always a chance.

So in short, you probably have about as good of a chance to win the lottery, but a chance none the less.

Good luck with your breedings.
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-Ross Payan - www.LeosAnonymous.com

Leos Anonymous

Ball Pythons, Red Striped Leos, W.Hognose and Screaming AFT's

That's a breeding that I have been doing for years with my kings. The female is albino and the male is a het for albino. I usually get a split clutch. Half are albinos and the other half is 100% hets. This is how it should be statistically. I have had 7 egg clutches that were 5 albinos, 2 hets and just the opposite. It gets more interesting when you include pattern. She is striped and he is banded. I get some real nice aberrants.

a morph to a 100% het would get you the morph and normals that would all be 100% het. A 100% het to a 100% het gets you morph plus normals of which I think 50% would be hets and 50% would not be hets. anytime a breeding does not use an actual morph the normals have a possibility of NOT being hets.