Return to 8th grade science class

[RakesRepts]

After browsing through several dozen pages of posts in M&G, I just wanted to say this:

I should have paid closer attention in 8th grade science class!!! Who would have ever thought I would need to use a Punnett Square again?! I purged my brain of that knowledge years ago, along with English Literature and Algebra (as well as every other Math above simple arithmetic).

A special thanks to those of you who answer our "what morph is my leo?" questions, and who tirelessly explain what "het" means to those of US who feel like total noobs when we start to think about genetics. :main_thumbsup:

Needless to say, I'll be reading a LOT more before I breed my geckos.
:main_robin:

 

[acpart]

We all have to start somewhere! I bet there's some kind of genetics tutorial online.

Aliza

 

[fl_orchidslave]

VMS Herps has a good tutorial.

 

[Thorgecko707]

I feel like I lost all the info too. When I started breeding I wanted to hire a junior high tutor. Lol.

 

[RakesRepts]

These links have been helpful for me:

http://www.geckosetc.com/htm/genetics.htm#normalphenotype

http://www.paulsagereptiles.com/LeopardGenetics.htm

Of course, this board is most helpful :main_yes:

 

[richardrojas]

It is amazing how some stuff that we though that was boring or that we wasn't interested when we were in school, became to be a needed tool for something that now we are loving.

I am not sure if the next trick that I will explain had been written or discussed in other places but since all that I do for leaving is experimenting, taking data, understand the data, reproduce the data and publish the results. I always enjoy finding an easiest mathematical procedure or equations for all stuff. I am an Experimental Physicist, What else can I do? So here is the trick;

Lets think that you already understand and know what are the dominants and recessive morphs and which one have a super form. So almost everybody knows that when you breed 2 normals leos het for the same strain of albino you will have 1/4 chance to produce an albino 1/4 chance of hatching a normal with no hets and 1/2 chance to hatch a normal het for albino. The same thing will happen when you are breeding any pair that is het for any gene. The thing gets a little complicated when you have a pair that is het for 2 genes or in other words a double het. In this case you need to work out a 4 by 4 Punnet square or just do the next math.

Let imagine you have a pair of normals het Blazing Blizzard (Albino Blizzard) so you already know that you will have a 1/4 chance of hatching an Albino and 1/4 chance of hatching a Blizzard so for hatching a Blazing Blizzard you just net to multiply 1/4 x 1/4 = 1/16 or in other words 0.25 x 0.25 = 0.0625 or 6.25% chance of hatching a Blazing Blizzard.

This math or equation is useful when you are working in morphs that includes lots of different genes. An example will be a pair consisting of a Snow Enigma het Diablo Blanco x a Snow het Diablo Blanco. What would be the chance of hatching a Super Snow Diablo Blanco Enigma? So when you breed a 2 Snow you have 1/4 chance on getting a Super Snow, Enigma to non Enigma you have a 1/2, het Albino to het Albino 1/4, het eclipse to het eclipse 1/4, het blizzard to het blizzard 1/4. The chance of hatching that expected Super Snow Diablo Blanco Enigma will be 1/4 x 1/2 x 1/4 x 1/4 x 1/4 = 1/512 or
.25 x .50 x .25 x .25 x .25 = 0.00195 or 0.195%. Instead of doing a 32 by 32 Punnet Square and filling 512 spaces, you just can make the calculation more easy by following this examples.

I hope that this will help everybody.