Reptile & Amphibian Forums

Ok, how come a double het blizzard/patternless male, bred to a double het blizzard/patternless will get normals when any other double het combo (Patternless Albino for example) produces 100 percent combined genes. If they are all homozygous for the recessive gene, there is no dominant gene. No capatalized letters, so there cant be a RRtt (From geckogods explanation below) That explanation is correct if your dealing with hets. Sorry if this was explained below, i know this was the first question asked on the thread, but i read all those posts three times and never found an explanation for it. Thanks

An animal that is heterozygous patternless and heterozygous albino bred to an animal with the same genetic makeup would produce offspring with a one in sixteen chance of being homozygous for both traits at once.

In theory, although not in practice for an as of yet unknown reason when dealing with blazing blizzards, all other double heterozygous crosses should yield the same variability.
-----

E2MacPets
http://www.e2macpets.com

I know about the 1/16 chance and all that, and i know i said double het at the top of that post. I've been told that a blazing bliz x blazing bliz is very unlikely to produce another blazing bliz. If this is true, than why does PA x PA equal 100 percent PA, if Blazing bliz x blazing bliz does not?

I'm not sure of the outcome of blazing crossed with blazing...but it is probably just because some of the offspring are born without red eyes, but are still double recessive. I don't know that for sure...blazing blizzard is an unusual situation and its not known for sure why things work out the way they do with blazing blizzards.
-----
Christina

0.3.1 leos (soon to be 1.3.1!)
-0.1 tangerine het rainwater albino w/jungle background (Blinkers)
-0.2 jungles (Vahz & Skissor)
-0.0.1 albino (supposed Tremper)(Spitfire)
-soon to be 1.0 tangerine rainwater albino
1.0 australian shepherd/cattle dog (Foster...although he was being fostered before I got him...that has nothing to do with his name...It's after the beer!...lol since he's australian and I'm a college student!)

i have heard that almost all "desireable color morphs" in leos are the result of recessive genes, is this true or are there some dominant and co-dominant traits the way there are in ball pythons
thanks,
chris

I believe I've heard that carrot-tail and some hypos are dominant traits...as far as I know there are no co-dominant traits in leos...but I could very well be wrong... Some of the desireable traits are simply line bred, like tangerine, jungle, and some hypos.
-----
Christina

0.3.1 leos (soon to be 1.3.1!)
-0.1 tangerine het rainwater albino w/jungle background (Blinkers)
-0.2 jungles (Vahz & Skissor)
-0.0.1 albino (supposed Tremper)(Spitfire)
-soon to be 1.0 tangerine rainwater albino
1.0 australian shepherd/cattle dog (Foster...although he was being fostered before I got him...that has nothing to do with his name...It's after the beer!...lol since he's australian and I'm a college student!)

isnt CT line bred too?

I believe I've heard that its dominant and that its line bred...it probably is linebred...
-----
Christina

0.3.1 leos (soon to be 1.3.1!)
-0.1 tangerine het rainwater albino w/jungle background (Blinkers)
-0.2 jungles (Vahz & Skissor)
-0.0.1 albino (supposed Tremper)(Spitfire)
-soon to be 1.0 tangerine rainwater albino
1.0 australian shepherd/cattle dog (Foster...although he was being fostered before I got him...that has nothing to do with his name...It's after the beer!...lol since he's australian and I'm a college student!)

I thought that the jungle trait was a simple recessive trait that was refined by line breeding (bold jungles etc).

-Alice

I've heard different things about jungle as well...some claim its recessive...some say its simply line bred...I don't really know...lol I think some are simple recessive and some are just plain line bred
-----
Christina

0.3.1 leos (soon to be 1.3.1!)
-0.1 tangerine het rainwater albino w/jungle background (Blinkers)
-0.2 jungles (Vahz & Skissor)
-0.0.1 albino (supposed Tremper)(Spitfire)
-soon to be 1.0 tangerine rainwater albino
1.0 australian shepherd/cattle dog (Foster...although he was being fostered before I got him...that has nothing to do with his name...It's after the beer!...lol since he's australian and I'm a college student!)

Albino (recessive)
Blizzard (recessive)
Red eyed (UNKOWN)
-----
0.1 Albino Leopard gecko
Coming Soon
1.0 ball python

okay, so basically, Blazing Blizzards are still a new enough morph that we're still figuring out their genetics, right?
So unless you had a DNA test and made sure each parent had those exact same genes (and we're not even completely sure which ones they are), we'll just keep breeding them until we have blazing blizzards who have 100% Blazing Blizzards when bred with another, correct?

So many Alleles, So little time...
(hmm.. I think I'm going to make that my signature...)

~~Dusty

If you or anyone starts breeding blazeing blizz. then you should use the incubation temps on color to your advantage. Because as dedalus said they are albinos but with varying amounts of pigment. So if you want to get true blazing blizzards this would probably increase your chances:
Males-You should have the temps between 88-90 the whole time while incubating
Females-Temps 80-82 for the first two weeks then the rest of the time have the temps in 88-90
Don't Care-Temps 85ish for first two weeks then the rest of the time 88-90
-----
0.1 Albino Leopard gecko
1.1 feral cats (we adopted them)
Coming Soon
0.0.1 ball python

Take a look at Ron Trempers page for more detailed info. It's where I got my first look at color based on temp. He says to keep the temp at a steady 90 and don't drop below 90 because even that can affect coloration.
-----
0.2.0 Normal Leopard Gecko's
1.0.0 Patternless Leopard Gecko
0.1.0 Veiled Chameleon
1.0.0 Bearded Dragon

The red eyes is not unknown at all. It's the lack of pigment from the albinism. True albinos have no pigment thus they have red eyes because there is no pigment in the iris. This trait often shows in regular albino leos. The problem with getting a blazzing blizz is that not all albino's have red eyes. Even if you could have a 100% chance of breeding albino/blizz offspring out of every egg you had there is no way to predict how much pigment an individual will actually have. This is why blazzing blizz is so rare.
-----
0.2.0 Normal Leopard Gecko's
1.0.0 Patternless Leopard Gecko
0.1.0 Veiled Chameleon
1.0.0 Bearded Dragon