NEW Question! Genetics Albino+Axanthic

[BaLLPAddICT]

If I were to make a punnett square to find the offspring of an Albino and an Axanthic ball what would I use for the genetics? Or where could I find all the genetics? Trying to figure out how all this stuff works and plan to breed in the future. Thanks---------------

[daniel1983]

Read this carefully.
http://www.newenglandreptile.com/gen...recessive.html

It works the same when albinos and axanthics are bred.

[BaLLPAddICT]

what table would i use the Double-het Caramel Glow X Caramel one? exept change the carmel one to all a's since its albino?

[daniel1983]

Ok....

A ball python that carries both the homozygous albino and homozygous axanthic trait is commonly called a Snow.

In order to produce a Snow, you must first produce double heterzygous albino/axanthics. To produce these, you must breed a homozygous albino to a homozygous axanthic. All offspring will appear normal, but each will be heterzygous for albino and axanthic.

Then you would have to breed a pair of the double heterzygous for Snow animals together. You will have a 1/16 chance of producing a Snow.

To follow along with the example on NERD's site, you would use the Double-het Caramel Glow X Double-het Caramel Glow.....but substitute albino for caramel and axanthic for ghost.

[Kizerk]

that evasive snow...

i understand the genetics but i cant seem to draw it out on a punnett square

[BaLLPAddICT]

ok so on the first part on that page where it has the parents.. the parents would be albino and axanthic so it would be: aG|Cx right? instead of the carmel|ghost: cG|Cg? if so then what does the capital letter by it stand for? i dont understand this, please help me..

[Evan Jamison]

Usually with punnet squares, a letter will represent the gene at a specific loci. A capital letter represents the dominant gene, and the lower case letter represents the recessive gene. For albino, AA would be a normal, Aa would be a het, and aa would be an albino. Some people will use other symbols to signify which gene is dominant over the others, like on the Sutherlands site where a+a+ is normal, and aa is albino.

-Evan

[BaLLPAddICT]

so if i were to make a punnett square for the offspring of an albino and an axanthic it would look like this for the parents? aa|xx... and if you're breeding two homozygous together then you wouldnt do a two by two like you would with the simple recessive ones and just do the table like that? you would combine the genes when you're breeding homozygous to homozygous correct?

[Evan Jamison]

Let's break this down to the basics of what a punnet square actually is. When dealing just one trait, the square is two by two. The letters across the top are the possible genes that one parent can pass on, and the letters down the side are for the other parent. Since your only dealing with one trait (two genes) there are only two possibilities (i.e. a het albino can pass on the normal gene, or the albino gene, but not both). It is the same thing with two traits, except the square is four by four. The two traits have nothing to do with each other, and are inherited independant of each other, so there are four possible combinations of genes that can be passed on by each parent. An albino bred to an axanthic would produce ALL double hets, meaning all the offspring would be carriers of both traits, but would look normal since wild-type is donimant over both traits. So if aaXX is an albino, and AAxx is an axanthic, all the offspring would be AaXx. aaXX can only pass on aX, and AAxx can only pass on Ax, so the result can only be AaXx.

-Evan

[BaLLPAddICT]

how could an albino be aaXX? doesnt the x stand for axanthic? wouldnt that mean that its half albino half axanthic.. i know thats not what it means but i just want to know how that works.. like say i just bought an albino and an axanthic ball and were to make a punnett square to find out the offspring.. how would i know which genes or traits to put for each parent?