Reptile & Amphibian Forums

ok i have no idea how to caculate het and what not with the punnet square. can someone put this in lame mans terms. like how to spot out good buys what to breed like 66% het with a 100%het female and what you get out of it and know what and how many to hold back for future breeding? i know it is alot but this is deep biology . and what does 1.0 mean with the animal 1.3 2.2 whatever.i guess it is all math and luck with both i dont have. Fianlly how do you produce hypo, snowglows anery,albino,hets, spider clown. pied . which one is the best?all that crasy stuff i see in the add its just so overwelming i dont know where and how to begin

Some places for you to start your quest,

For some basic info:

http://www.buddhaboa.com/genetic_info/

and/or boagenetics.com

for a web based punnet square program:

http://geneticswizard.com/

>>ok i have no idea how to caculate het and what not with the punnet square. can someone put this in lame mans terms. like how to spot out good buys what to breed like 66% het with a 100%het female and what you get out of it and know what and how many to hold back for future breeding? i know it is alot but this is deep biology . and what does 1.0 mean with the animal 1.3 2.2 whatever.i guess it is all math and luck with both i dont have. Fianlly how do you produce hypo, snowglows anery,albino,hets, spider clown. pied . which one is the best?all that crasy stuff i see in the add its just so overwelming i dont know where and how to begin
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Thanks,

Dave Colling

www.rainbows-r-us-reptiles.com

0.1 Wife (WC)
0.2 kids (CBB, selectively bred from good stock)

LOL, to many snakes to list, last count:
13.26 BRB
11.16 BCI
And those are only the breeders

lots.lots.lots feeder mice and rats

All of that could take a wile to explain, but I can start you off with this.

100% het is a guarenteed het, it carries the gene for what ever trait is listed; albino, pibald, etc. The animal looks normal if it is a ressive gene like albino.

66% het means that the ods are 66 out of 100 that the animal is a het. Or 2 out of 3.

When you breed two 100% hets together 25% of the offspring will visably have the ressive trait, like albino, and the rest will look normal. The ones that look normal have a 66% chance of having the gene.

ex.
you breed two hets and get 4 babys
1 is albino
2 are hets
1 is normal

because the hets look the same as the normal there is no way to tell by looking wich are the hets and wich are the normal so they all have a 66% chance of being het.

don't forget that breeding two hets does not guarentee you will get albinos. some times it takes several breeding attempts to have any. each egg has a 25% chance of being albino, they could all look normal, or you could end up with a clutch that is half albino, or more (that would be like winning the lottery, but it is possible).

Hope this has helped you.
I can teach you the Punnet square, but I will need to e-mail you a visual aid.

the numbers 1.0 and 2.5.4 are numbers of each gender

1.0 is one male no females

2.5.4 is 2 males, 5 females, and 4 unknown/unsexed

I was mixed up by this stuff at first too

Thank you to ALL! very informing. my email is monkeyboy8me125@yahoo.com for any more help thanks Paul

In addition to the other web sites listed, you might try Serpwidgets' site. It is better than most. It is for the corn snake, but the principles are the same with corn snakes, boa constrictors, fruit flies, corn plants, etc. The major bad point is that it does not cover dominant and codominant mutants, like salmon (aka hypo) in boa constrictors, tiger in reticulated pythons, and spider in ball pythons. However, once you understand how to work with recessive mutants (like albino and pied in the ball python), learning to work with dominant mutants is not particularly difficult.

On the other hand, I don't know of any web site that is as thorough as a genetics text. Elrod and Stansfield's book, Schaum's Introduction to Genetics, is inexpensive. And I like its problem-oriented approach.

Paul Hollander

Serpwidgets' corn snake genetics site