Hets

I have a question about hets. I know what het means but what i dont know is how people come up with the % of het they are. Also is there any way to tell if an animal is really a Het? because im looking at getting into some ghost/genetic stripe projects and I want to be sure I dont waste 3 years thinking im breeding 2 hets when im breeding 2 normals. Thanks for any help!

If you really want to be sure your het is in fact a het buy from a reputable breeder and/or make sure to get paperwork of the genetics of the animal your buying. Other that that there are really no consistent ways to tell a het from another normal.
People come up with traits they see a lot that usually ends up with the animal being a het (ie. Het pied marker/tail stripe) but they are not proven or consistent as clearly known 'normals' sometimes have the markers as well....so basicaly get your paperwork .

First the % is the percent chance that animals is a Het so 100% is a het no if and or butts. 66% better than 50/50 which is a 50% chance.

As for making sure that your het is a het..the only thing you can do is buy from a reputable breeder.

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Originally Posted by kyote19

If you really want to be sure your het is in fact a het buy from a reputable breeder and/or make sure to get paperwork of the genetics of the animal your buying.

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I know of a couple of reputable breeders that don't send paperwork with hets.. So don't be disappointed if you don't get any. Just research your seller and go from there.

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Originally Posted by Freakie_frog

First the % is the percent chance that animals is a Het so 100% is a het no if and or butts. 66% better than 50/50 which is a 50% chance.

As for making sure that your het is a het..the only thing you can do is buy from a reputable breeder.

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But do the breeders just say that there 66% het or is there a way that they come up with that number? :confused:

There is a way to come up with that percent age.

Het X Het will yeild on average

25% Homozygous
25% Normals
50% Hets

Since its 1:4 visual the other 3 offspring when figuring in 4's (on average will be normal) two will be hets. So
3 animals = 100% 100% / 3 = 33.33%
so each animal has a 33.33% chance of being normal or a 66.66% chance of being a het. :D

Thanks you all for your help, this will make it a little easier to get into some recessive genes. In your guys opinion what would be the best starting recessive? I have a female pastel thats ready to breed and a normal female thats ready to breed. I was thinking maybe ghost or Gstripe but I dont know.

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Originally Posted by pythonkeeper16

Thanks you all for your help, this will make it a little easier to get into some recessive genes. In your guys opinion what would be the best starting recessive? I have a female pastel that's ready to breed and a normal female that's ready to breed. I was thinking maybe ghost or Gstripe but I don't know.

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In my opinion the best recessive to get in to is the one that you can't live with out. So if you like g-stripes get that or if you like Pieds or Hypos or what ever your taste.. Go that way..In the end it you that has to clean the poop so you'll want to make sure its an animal you enjoy..

I think a punnett square is the easiest way to illustrate inheritance and make it understandable.

Each single morph het animal has 1 mutant gene and one normal gene. Each single morph homozygous animal has 2 mutant genes. Put the sire's genes along the top, and the dam's along the side--so you will have (for example) "Albino" and 'Normal" along the top, for a het male. If you have a homozygous female (an albino), put "Albino", and "Albino" along the side. Then you just fill in the rest of the square--each offspring will have one gene from the mother, and one from the father.

http://en.wikipedia.org/wiki/Punnett_square

http://www.newenglandreptile.com/gen...recessive.html

You can use a punnett square to figure out the percentages for any combination you choose to cross.

66% het of course means there's a 2/3 chance the animal will be het (and a 1/3 chance it is a normal).

I find Marc Mandic's page the easiest to explain genetics with recessives.

http://www.ballpython.ca/genetics.html